Scholarly Interest Report


 

Tayfun E. Tezduyar  Professor  James F. Barbour Professor of Mechanical Engineering   email:tezduyar@rice.edu    M.S. Mechanical Engineering (1978) California Institute of Technology, Pasadena, California
 Ph.D. Mechanical Engineering (1982) California Institute of Technology, Pasadena, California
 Dr. h.c. Honorary Doctorate (2001) Slovak Republic, Slovakia
  Primary Department  Department of Mechanical Engineering    
Websites   Tayfun Tezduyar
  Team for Advanced Flow Simulation and Modeling
  Web Site: Tayfun E. Tezduyar
  Web Site: Team for Advanced Flow Simulation and Modeling (T*AFSM)
 
Research Areas   Computational FluidStructure Interaction (FSI), Cardiovascular FSI, Heart Valve Computational Flow Analysis, Spacecraft Parachute FSI, Bioinspired FlappingWing Aerodynamics, Aerodynamics of Wind Turbines, ThermoFluid Analysis of Ground Vehicles, Tires and Disk Brakes, Flow Analysis of Turbochargers and Other Turbomachinery, Aerodynamics and Structural Mechanics of RamAir Parachutes, Air Circulation and Contaminant Dispersion, FluidParticle Interaction, FreeSurface and TwoFluid Flows, Moving Boundaries and Interfaces, Computational Fluid Mechanics, Finite Element Methods, Stabilized Formulations, Multiscale Methods, and Parallel Computing.  
Research Interests 29JAN2018   BIOINSPIRED FLAPPINGWING AERODYNAMICS OF MICRO AERIAL VEHICLES (MAVs)
In this research we are developing advanced spacetime computational techniques for bioinspired flappingwing aerodynamics of micro aerial vehicles (MAVs). The wing motion and deformation patterns, whether prescribed fully or partially, are based on digital data extracted from the highspeed, multicamera video recordings of a locust in a wind tunnel. The computational techniques we are developing include spacetime representation of the wings with higherorder basis functions in time. This higherorder representation in time gives us good accuracy and smoothness in wing motion and deformation patterns. Our objectives in this research include design of flapping MAV wings with wing motion and deformation patterns inspired by those of a locust or other flying animals. We are also working on the fluidstructure interaction (FSI) analysis of this class of problems.
References:
1. K. Takizawa and T.E. Tezduyar, "Multiscale SpaceTime FluidStructure Interaction Techniques", Computational Mechanics, 48 (2011) 247267.
2. K. Takizawa, B. Henicke, A. Puntel, T. Spielman and T.E. Tezduyar, "SpaceTime Computational Techniques for the Aerodynamics of Flapping Wings", Journal of Applied Mechanics, 79, 010903 (2012).
3. K. Takizawa and T.E. Tezduyar, "SpaceTime FluidStructure Interaction Methods", Mathematical Models and Methods in Applied Sciences, 22 (supp02) (2012) 1230001.
4. K. Takizawa, B. Henicke, A. Puntel, N. Kostov and T.E. Tezduyar, "SpaceTime Techniques for Computational Aerodynamics Modeling of Flapping Wings of an Actual Locust", Computational Mechanics, 50 (2012) 743760.
5. K. Takizawa, N. Kostov, A. Puntel, B. Henicke and T.E. Tezduyar, "SpaceTime Computational Analysis of Bioinspired FlappingWing Aerodynamics of a Micro Aerial Vehicle", Computational Mechanics, 50 (2012) 761778.
6. K. Takizawa, B. Henicke, A. Puntel, N. Kostov and T.E. Tezduyar, "Computer Modeling Techniques for FlappingWing Aerodynamics of a Locust", Computers & Fluids, 85 (2013) 125134.
7. K. Takizawa, T.E. Tezduyar, A. Buscher and S. Asada, "SpaceTime InterfaceTracking with Topology Change (STTC)", Computational Mechanics, 54 (2014) 955971.
8. K. Takizawa, T.E. Tezduyar and N. Kostov, "SequentiallyCoupled SpaceTime FSI Analysis of Bioinspired FlappingWing Aerodynamics of an MAV", Computational Mechanics, 54 (2014) 213233.
9. K. Takizawa, T.E. Tezduyar and A. Buscher, "SpaceTime Computational Analysis of MAV FlappingWing Aerodynamics with Wing Clapping", Computational Mechanics, 55 (2015) 11311141.
  Research Interests 29JAN2018   THERMOFLUID ANALYSIS OF GROUND FREIGHT VEHICLES
In this research, we focus on thermofluid analysis of a ground freight vehicle and its tires, currently the rear tires. The analysis is challenging because the flow is turbulent, there is interaction between the fluid mechanics and thermal transport, the truck model used in the analysis closely represents the actual configuration, and we need accurate thermal analysis around the tire, which is significantly smaller than the truck. All this requires a method that is multiscale in multiple aspects. We address the computational challenges with the core and special multiscale spacetime (ST) methods we developed. The core multiscale ST method is the ST variational multiscale (STVMS) formulation of the NavierStokes equations of incompressible flows with thermal coupling, which is multiscale in the way the smallscale thermofluid behavior is represented in the computations. The special multiscale ST method is spatially multiscale, where the thermofluid computation over the global domain with a reasonable mesh refinement is followed by a higherresolution computation over the local domain containing the rear set of tires, with the boundary and initial conditions coming from the data computed over the global domain. The large amount of timehistory data from the global computation is stored using the ST computation technique with continuous representation in time (STC), which serves as a data compression technique in this context. In our thermofluid analysis, we use a roadsurface temperature higher than the freestream temperature, and a tiresurface temperature that is even higher. We include in the analysis also the heat from the engine and exhaust system, with a reasonably realistic representation of the rate by which that heat transfer takes place as well as the surface geometry of the engine and exhaust system over which the heat transfer occurs. We take into account the heave motion of the truck body. We demonstrate how the spatially multiscale ST method, with higherrefinement mesh in the local domain, substantially increases the accuracy of the computed heat transfer rates from the tires.
References:
1. K. Takizawa, T.E. Tezduyar and T. Kuraishi "Multiscale ST Methods for ThermoFluid Analysis of a Ground Vehicle and its Tires", Mathematical Models and Methods in Applied Sciences, 25 (2015) 22272255.
2. K. Takizawa, T.E. Tezduyar, S. Asada and T. Kuraishi, "SpaceTime Method for Flow Computations with Slip Interfaces and Topology Changes (STSITC)", Computers & Fluids, 141 (2016) 124134.   Research Interests 29JAN2018   COMPUTER MODELING OF SPACECRAFT PARACHUTES
In this research, we focus on fluidstructure interaction (FSI) modeling of spacecraft parachutes. The geometric complexity created by the "rings" and "sails" used in the construction of these parachutes poses a significant computational challenge. Our FSI modeling of these parachutes is based on the stabilized spacetime FSI (SSTFSI) technique we have developed and a number of interface projection techniques we introduced. These projection techniques address the computational challenges posed by the geometric complexities of the fluidstructure interface. The spacecraft parachutes are typically used in clusters of two or three parachutes. The contact between the parachutes is another major computational challenge, and we are addressing that with a special contact method we have developed. Spacecraft parachutes are also typically used in multiple stages, starting with a "reefed" stage where a cable along the parachute skirt constrains the diameter to be less than the diameter in the subsequent stage. After a certain period of time during the descent, the cable is cut and the parachute "disreefs" (i.e. expands) to the next stage. Computing the parachute shape at the reefed stage and FSI modeling during the disreefing involve additional computational challenges created by the increased geometric complexities and by the rapid changes in the parachute geometry. We are addressing those challenges. As an additional computational challenge, the ringsail parachute canopy might, by design, have some of its panels and sails removed. The purpose is to increase the aerodynamic performance of the parachute. In FSI computation of parachutes with such "modified geometric porosity," the flow through the "windows" created by the removal of the panels and the wider gaps created by the removal of the sails needs to be actually resolved, and we addressing that computational challenge.
References:
1. T.E. Tezduyar, K. Takizawa, C. Moorman, S. Wright and J. Christopher, "SpaceTime Finite Element Computation of Complex FluidStructure Interactions", International Journal for Numerical Methods in Fluids, 64 (2010) 12011218.
2. K. Takizawa, C. Moorman, S. Wright, T. Spielman and T.E. Tezduyar, "FluidStructure Interaction Modeling and Performance Analysis of the Orion Spacecraft Parachutes", International Journal for Numerical Methods in Fluids, 65 (2011) 271285.
3. K. Takizawa, S. Wright, C. Moorman and T.E. Tezduyar, "FluidStructure Interaction Modeling of Parachute Clusters", International Journal for Numerical Methods in Fluids, 65 (2011) 286307.
4. K. Takizawa, T. Spielman and T.E. Tezduyar, "SpaceTime FSI Modeling and Dynamical Analysis of Spacecraft Parachutes and Parachute Clusters", Computational Mechanics, 48 (2011) 345364.
5. K. Takizawa, T. Spielman, C. Moorman and T.E. Tezduyar, "FluidStructure Interaction Modeling of Spacecraft Parachutes for SimulationBased Design", Journal of Applied Mechanics, 79, 010907 (2012).
6. K. Takizawa and T.E. Tezduyar, "Computational Methods for Parachute FluidStructure Interactions", Archives of Computational Methods in Engineering, 19 (2012) 125169.
7. K. Takizawa, M. Fritze, D. Montes, T. Spielman and T.E. Tezduyar, "FluidStructure Interaction Modeling of Ringsail Parachutes with Disreefing and Modified Geometric Porosity", Computational Mechanics, 50 (2012) 835854.
8. K. Takizawa and T.E. Tezduyar, "Bringing Them Down Safely", Mechanical Engineering, 134 (12) (2012) 3437.
9. K. Takizawa, D. Montes, M. Fritze, S. McIntyre, J. Boben and T.E. Tezduyar, "Methods for FSI Modeling of Spacecraft Parachute Dynamics and Cover Separation", Mathematical Models and Methods in Applied Sciences, 23 (2013) 307338.
10. K. Takizawa, T.E. Tezduyar, J. Boben, N. Kostov, C. Boswell and A. Buscher, "FluidStructure Interaction Modeling of Clusters of Spacecraft Parachutes with Modified Geometric Porosity", Computational Mechanics, 52 (2013) 13511364.
11. K. Takizawa, T.E. Tezduyar, C. Boswell, R. Kolesar and K. Montel, "FSI Modeling of the Reefed Stages and Disreefing of the Orion Spacecraft Parachutes", Computational Mechanics, 54 (2014) 12031220.
12. K. Takizawa, T.E. Tezduyar, R. Kolesar, C. Boswell, T. Kanai and K. Montel, "Multiscale Methods for Gore Curvature Calculations from FSI Modeling of Spacecraft Parachutes", Computational Mechanics, 54 (2014) 14611476.
13. K. Takizawa, T.E. Tezduyar, C. Boswell, Y. Tsutsui and K. Montel, "Special Methods for AerodynamicMoment Calculations from Parachute FSI Modeling", Computational Mechanics, 55 (2015) 10591069.
14. K. Takizawa, T.E. Tezduyar and R. Kolesar, "FSI Modeling of the Orion Spacecraft Drogue Parachutes", Computational Mechanics, 55 (2015) 11671179.
15. K. Takizawa, T.E. Tezduyar and T. Terahara, "RamAir Parachute Structural and Fluid Mechanics Computations with the SpaceTime Isogeometric Analysis (STIGA)", Computers & Fluids, 141 (2016) 191200.
16. K. Takizawa, T.E. Tezduyar and T. Kanai, "Porosity Models and Computational Methods for CompressibleFlow Aerodynamics of Parachutes with Geometric Porosity", Mathematical Models and Methods in Applied Sciences, 27 (2017) 771806.
  Research Interests 29JAN2018   FLOW ANALYSIS OF TURBOMACHINERY
In this research, we focus on accurate flow analysis of turbomachinery, which typically involves complex geometries and high Reynolds number flows. Examples are analysis of flowdriven string dynamics in turbomachinery and flow analysis of a turbochargerturbine. The computational challenges include accurate representation of the geometry of the solid surfaces, accurate representation of the smallscale fluid mechanics behavior, highresolution representation of the boundary layers near the spinning solid surfaces, and computation the flowdriven dynamics of strings. The components of the method we developed for this purpose are i) the SpaceTime Variational Multiscale (STVMS) method, which is a stabilized formulation that also serves as a turbulence model, ii) the ST Slip Interface (STSI) method, which maintains highresolution representation of the boundary layers near spinning solid surfaces by allowing in a consistent fashion slip at the interface between the mesh covering a spinning surface and the mesh covering the rest of the domain, and iii) the Isogeometric Analysis (IGA), where we use NURBS basis functions in space and time. The basis functions are spatially higherorder in all representations, and temporally higherorder in representation of the solidsurface and mesh motions. The ST nature of the method gives us higherorder accuracy in the flow solver, and when combined with temporally higherorder basis functions, a more accurate representation of the surface motion, and a mesh motion consistent with that. The spatially higherorder basis functions give us again higherorder accuracy in the flow solver, a more accurate, in some parts exact, representation of the surface geometry, and better representation in evaluating the secondorder spatial derivatives. The dynamics of the strings is handled with a oneway dependence model.
References
1. K. Takizawa, T.E. Tezduyar and H. Hattori, "Computational Analysis of FlowDriven String Dynamics in Turbomachinery", Computers & Fluids, 142 (2017) 109117.
2. K. Takizawa, T.E. Tezduyar, Y. Otoguro, T. Terahara, T. Kuraishi and H. Hattori, "Turbocharger Flow Computations with the SpaceTime Isogeometric Analysis (STIGA)", Computers & Fluids, 142 (2017) 1520.
3. Y. Otoguro, K. Takizawa and T.E. Tezduyar, "SpaceTime VMS Computational Flow Analysis with Isogeometric Discretization and a GeneralPurpose NURBS Mesh Generation Method", Computers & Fluids, 158 (2017) 189200.   Research Interests 29JAN2018   PATIENTSPECIFIC COMPUTER MODELING OF ARTERIAL DYNAMICS AND BLOOD FLOW
We are developing advanced computational techniques for patientspecific computer modeling of arterial dynamics and blood flow and the interaction between the two. Our studies include blood flow in cerebral arteries with aneurysm, human aorta, coronary arteries and heart valve models. Our objective is to make patientspecific computer modeling of arterial dynamics and blood flow a medical diagnostic and decisionmaking tool that can save lives. We are addressing the main computational challenge involved: fluidstructure interaction (FSI) between the blood flow and arterial walls. The blood flow depends on the arterial geometry, and the deformation of the arterial wall depends on the blood flow. The equations governing the blood flow and arterial deformation need to be solved simultaneously, with proper kinematic and dynamic conditions coupling the two physical systems. Without that the modeling cannot be realistic. While modeling the FSI between the blood flow and arterial walls is one of the most challenging problems in cardiovascular fluid mechanics, there are other complex problems that are comparably challenging. Patientspecific computation of unsteady blood flow in an artery with aneurysm and stent is one of them. Blood flow in heart valve models and coronary arteries are two other examples. We are addressing those computational challenges.
References:
1. T.E. Tezduyar, S. Sathe, M. Schwaab and B.S. Conklin, "Arterial Fluid Mechanics Modeling with the Stabilized SpaceTime FluidStructure Interaction Technique", International Journal for Numerical Methods in Fluids, 57 (2008) 601629.
2. K. Takizawa, J. Christopher, T.E. Tezduyar and S. Sathe, "SpaceTime Finite Element Computation of Arterial FluidStructure Interactions with PatientSpecific Data", International Journal for Numerical Methods in Biomedical Engineering, 26 (2010) 101116.
3. K. Takizawa, C. Moorman, S. Wright, J. Christopher and T.E. Tezduyar, "Wall Shear Stress Calculations in SpaceTime Finite Element Computation of Arterial FluidStructure Interactions", Computational Mechanics, 46 (2010) 3141.
4. T.E. Tezduyar, K. Takizawa, T. Brummer and P.R. Chen, "SpaceTime FluidStructure Interaction Modeling of PatientSpecific Cerebral Aneurysms", International Journal for Numerical Methods in Biomedical Engineering, 27 (2011) 16651710.
5. K. Takizawa, T. Brummer, T.E. Tezduyar and P.R. Chen, "A Comparative Study Based on PatientSpecific FluidStructure Interaction Modeling of Cerebral Aneurysms", Journal of Applied Mechanics, 79, 010908 (2012).
6. K. Takizawa, Y. Bazilevs and T.E. Tezduyar, "SpaceTime and ALEVMS Techniques for PatientSpecific Cardiovascular FluidStructure Interaction Modeling", Archives of Computational Methods in Engineering, 19 (2012) 171225.
7. K. Takizawa, K. Schjodt, A. Puntel, N. Kostov and T.E. Tezduyar, "PatientSpecific Computer Modeling of Blood Flow in Cerebral Arteries with Aneurysm and Stent", Computational Mechanics, 50 (2012) 675686.
8. K. Takizawa, K. Schjodt, A. Puntel, N. Kostov and T.E. Tezduyar, "PatientSpecific Computational Analysis of the Influence of a Stent on the Unsteady Flow in Cerebral Aneurysms", Computational Mechanics, 51 (2013) 10611073.
9. K. Takizawa, H. Takagi, T.E. Tezduyar and R. Torii, "Estimation of ElementBased ZeroStress State for Arterial FSI Computations", Computational Mechanics, 54 (2014) 895910.
10. K. Takizawa, T.E. Tezduyar, A. Buscher and S. Asada, "SpaceTime InterfaceTracking with Topology Change (STTC)", Computational Mechanics, 54 (2014) 955971.
11. K. Takizawa, Y. Bazilevs, T.E. Tezduyar, C.C. Long, A.L. Marsden and K. Schjodt, "ST and ALEVMS Methods for PatientSpecific Cardiovascular Fluid Mechanics Modeling", Mathematical Models and Methods in Applied Sciences, 24 (2014) 24372486.
12. K. Takizawa, T.E. Tezduyar, A. Buscher and S. Asada, "SpaceTime Fluid Mechanics Computation of Heart Valve Models", Computational Mechanics, 54 (2014) 973986.
13. K. Takizawa, R. Torii, H. Takagi, T.E. Tezduyar and X.Y. Xu, "Coronary Arterial Dynamics Computation with MedicalImageBased TimeDependent Anatomical Models and ElementBased ZeroStress State Estimates", Computational Mechanics, 54 (2014) 10471053.
14. K. Takizawa, T.E. Tezduyar and T. Sasaki, "Aorta Modeling with the ElementBased ZeroStress State and Isogeometric Discretization", Computational Mechanics, 59 (2017) 265280.
15. K. Takizawa, T.E. Tezduyar, T. Terahara and T. Sasaki, "Heart Valve Flow Computation with the Integrated SpaceTime VMS, Slip Interface, Topology Change and Isogeometric Discretization Methods", Computers & Fluids, 158 (2017) 176188.   Research Interests 29JAN2018   AERODYNAMIC ANALYSIS OF WIND TURBINES
Aerodynamic analysis of wind turbines is challenging because the rotor geometry is rather complex, and the analysis is done at full scale. The computation is challenging also because of the large Reynolds numbers and rotating turbulent flows, and computing the correct torque requires an accurate and meticulous numerical approach. The presence of the tower increases the computational challenge because of the fast, rotational relative motion between the rotor and tower. The core computational technology used in the analysis is the spacetime variational multiscale (STVMS), which our team developed. The VMS component of this method addresses the turbulent nature of the computational challenge. In our analysis, NURBS basis functions are used for the temporal representation of the rotor motion, enabling us to represent the circular paths associated with that motion exactly and specify a constant angular velocity corresponding to the invariant speeds along those paths. In addition, temporal NURBS basis functions are used in representation of the motion and deformation of the volume meshes computed and also in remeshing. This increases the robustness and accuracy the computations with mesh motion.
References:
1. Y. Bazilevs, M.C. Hsu, I. Akkerman, S. Wright, K. Takizawa, B. Henicke, T. Spielman and T.E. Tezduyar, "3D Simulation of Wind Turbine Rotors at Full Scale. Part I: Geometry Modeling and Aerodynamics", International Journal for Numerical Methods in Fluids, 65 (2011) 207235.
2. K. Takizawa and T.E. Tezduyar, "Multiscale SpaceTime FluidStructure Interaction Techniques", Computational Mechanics, 48 (2011) 247267.
3. K. Takizawa, B. Henicke, T.E. Tezduyar, M.C. Hsu and Y. Bazilevs, "Stabilized SpaceTime Computation of WindTurbine Rotor Aerodynamics", Computational Mechanics, 48 (2011) 333344.
4. K. Takizawa, B. Henicke, D. Montes, T.E. Tezduyar, M.C. Hsu and Y. Bazilevs, "NumericalPerformance Studies for the Stabilized SpaceTime Computation of WindTurbine Rotor Aerodynamics", Computational Mechanics, 48 (2011) 647657.
5. K. Takizawa and T.E. Tezduyar, "SpaceTime FluidStructure Interaction Methods", Mathematical Models and Methods in Applied Sciences, 22 (supp02) (2012) 1230001.
6. Y. Bazilevs, M.C. Hsu, K. Takizawa and T.E. Tezduyar, "ALEVMS and STVMS Methods for Computer Modeling of WindTurbine Rotor Aerodynamics and FluidStructure Interaction", Mathematical Models and Methods in Applied Sciences, 22 (supp02) (2012) 1230002.
7. K. Takizawa, T.E. Tezduyar, S. McIntyre, N. Kostov, R. Kolesar and C. Habluetzel, "SpaceTime VMS Computation of WindTurbine Rotor and Tower Aerodynamics", Computational Mechanics, 53 (2014) 115.
8. Y. Bazilevs, K. Takizawa, T.E. Tezduyar, M.C. Hsu, N. Kostov and S. McIntyre, "Aerodynamic and FSI Analysis of Wind Turbines with the ALEVMS and STVMS Methods", Archives of Computational Methods in Engineering, 21 (2014) 359398.
9. K. Takizawa, T.E. Tezduyar, H. Mochizuki, H. Hattori, S. Mei, L. Pan and K. Montel, "SpaceTime VMS Method for Flow Computations with Slip Interfaces (STSI)", Mathematical Models and Methods in Applied Sciences, 25 (2015) 23772406.
10. A. Castorrini, A. Corsini, F. Rispoli, P. Venturini, K. Takizawa and T.E. Tezduyar, "Computational Analysis of WindTurbine Blade Rain Erosion", Computers & Fluids, 141 (2016) 175183.   Research Interests 29JAN2018   THERMOFLUID ANALYSIS OF A DISK BRAKE
In this research, we focus on thermofluid analysis of a disk brake, including thermofluid analysis of the flow around the brake and heat conduction analysis of the disk. The computational challenges include proper representation of the smallscale thermofluid behavior, highresolution representation of the thermofluid boundary layers near the spinning solid surfaces, and bringing the heat transfer coefficient (HTC) calculated in the thermofluid analysis of the flow to the heat conduction analysis of the spinning disk. The disk brake model used in the analysis closely represents the actual configuration, and this adds to the computational challenges. The components of the method we have developed for computational analysis of the class of problems with these types of challenges include the SpaceTime Variational Multiscale (STVMS) method for coupled incompressible flow and thermal transport, ST Slip Interface (STSI) method for highresolution representation of the thermofluid boundary layers near spinning solid surfaces, and a set of projection methods for different parts of the disk to bring the HTC calculated in the thermofluid analysis. With the HTC coming from the thermofluid analysis of the flow around the brake, we do the heat conduction analysis of the disk, from the start of the breaking until the disk spinning stops, demonstrating how the method developed works in computational analysis of this complex and challenging problem.
References:
1. K. Takizawa, T.E. Tezduyar, T. Kuraishi, S. Tabata and H. Takagi, "Computational ThermoFluid Analysis of a Disk Brake", Computational Mechanics, published online, DOI: 10.1007/s0046601612724.   Teaching Areas   Fluid Mechanics, Advanced Fluid Mechanics, Computational Fluid Mechanics, Finite Element Method, Computational Mechanics, FluidStructure Interaction, Fluid Mechanics of Computing  
Selected Publications   Refereed articles   K. Takizawa, T.E. Tezduyar and H. Hattori "Computational Analysis of FlowDriven String Dynamics in Turbomachinery." Computers & Fluids, 142 (2017) : 109117.    K. Takizawa, T.E. Tezduyar and T. Kanai "Porosity Models and Computational Methods for CompressibleFlow Aerodynamics of Parachutes with Geometric Porosity." Mathematical Models and Methods in Applied Sciences, 27 ( 2017) : 771806.    K. Takizawa, T.E. Tezduyar and T. Kanai "SpacecraftParachute Computational Analysis and CompressibleFlow Extensions." Japan Aeronautical and Space Sciences Magazine, 65 ( 2017) : 280283, in Japanese.    K. Takizawa, T.E. Tezduyar and T. Sasaki, "Aorta Modeling with the ElementBased ZeroStress State and Isogeometric Discretization." Computational Mechanics, 59 ( 2017) : 265280.    K. Takizawa, T.E. Tezduyar, T. Terahara and T. Sasaki "Heart Valve Flow Computation with the Integrated SpaceTime VMS, Slip Interface, Topology Change and Isogeometric Discretization Methods." Computers & Fluids, 158 ( 2017) : 176188.    K. Takizawa, T.E. Tezduyar, Y. Otoguro, T. Terahara, T. Kuraishi and H. Hattori "Turbocharger Flow Computations with the SpaceTime Isogeometric Analysis (STIGA)." Computers & Fluids, 142 ( 2017)) : 1520.    S. Mittal and T.E. Tezduyar "Comment on `Experimental Investigation of Taylor Vortex Photocatalytic Reactor for Water Purification'." Chemical Engineering Science, published online, 10.1016/j.ces.2017.11.014 ( November 2017) Accepted    Y. Otoguro, K. Takizawa and T.E. Tezduyar "SpaceTime VMS Computational Flow Analysis with Isogeometric Discretization and a GeneralPurpose NURBS Mesh Generation Method." Computers & Fluids, 158 ( 2017)) : 189200.    K. Takizawa, T.E. Tezduyar, Y. Otoguro, T. Terahara, T. Kuraishi and H. Hattori, "Turbocharger Flow Computations with the SpaceTime Isogeometric Analysis (STIGA)", Computers & Fluids, to appear.    K. Takizawa, T.E. Tezduyar and H. Hattori, "Computational Analysis of FlowDriven String Dynamics in Turbomachinery", Computers & Fluids, to appear.    K. Takizawa, T.E. Tezduyar, C. Boswell, Y. Tsutsui and K. Montel, "Special Methods for AerodynamicMoment Calculations from Parachute FSI Modeling", Computational Mechanics, 55 (2015) 10591069.    K. Takizawa, T.E. Tezduyar and A. Buscher, "SpaceTime Computational Analysis of MAV FlappingWing Aerodynamics with Wing Clapping", Computational Mechanics, 55 (2015) 11311141.    K. Takizawa, T.E. Tezduyar and R. Kolesar, "FSI Modeling of the Orion Spacecraft Drogue Parachutes", Computational Mechanics, 55 (2015) 11671179.    K. Takizawa, T.E. Tezduyar and T. Kuraishi "Multiscale ST Methods for ThermoFluid Analysis of a Ground Vehicle and its Tires", Mathematical Models and Methods in Applied Sciences, 25 (2015) 22272255.    F. Rispoli, G. Delibra, P. Venturini, A. Corsini, R. Saavedra and T.E. Tezduyar, "Particle Tracking and ParticleShock Interaction in CompressibleFlow Computations with the VSGS Stabilization and YZb ShockCapturing ", Computational Mechanics, 55 (2015) 12011209.    K. Takizawa, T.E. Tezduyar, H. Mochizuki, H. Hattori, S. Mei, L. Pan and K. Montel, "SpaceTime VMS Method for Flow Computations with Slip Interfaces (STSI)", Mathematical Models and Methods in Applied Sciences, 25 (2015) 23772406.    K. Takizawa, T.E. Tezduyar, T. Kuraishi, S. Tabata and H. Takagi, "Computational ThermoFluid Analysis of a Disk Brake", Computational Mechanics, published online, DOI: 10.1007/s0046601612724.    Y. Bazilevs, K. Takizawa and T.E. Tezduyar, "New Directions and Challenging Computations in Fluid Dynamics Modeling with Stabilized and Multiscale Methods", Mathematical Models and Methods in Applied Sciences, 25 (2015) 22172226.    K. Takizawa, T.E. Tezduyar, R. Kolesar, C. Boswell, T. Kanai and K. Montel, "Multiscale Methods for Gore Curvature Calculations from FSI Modeling of Spacecraft Parachutes", Computational Mechanics, 54 (2014) 14611476.    K. Takizawa, R. Torii, H. Takagi, T.E. Tezduyar and X.Y. Xu, "Coronary Arterial Dynamics Computation with MedicalImageBased TimeDependent Anatomical Models and ElementBased ZeroStress State Estimates", Computational Mechanics, 54 (2014) 10471053.    K. Takizawa, T.E. Tezduyar, C. Boswell, R. Kolesar and K. Montel, "FSI Modeling of the Reefed Stages and Disreefing of the Orion Spacecraft Parachutes", Computational Mechanics, 54 (2014) 12031220.    K. Takizawa, T.E. Tezduyar, A. Buscher and S. Asada, "SpaceTime Fluid Mechanics Computation of Heart Valve Models", Computational Mechanics, 54 (2014) 973986.    Y. Bazilevs, K. Takizawa, T.E. Tezduyar, M.C. Hsu, N. Kostov and S. McIntyre, "Aerodynamic and FSI Analysis of Wind Turbines with the ALEVMS and STVMS Methods", Archives of Computational Methods in Engineering, 21 (2014) 359398.    K. Takizawa, Y. Bazilevs, T.E. Tezduyar, M.C. Hsu, O. Oiseth, K.M. Mathisen, N. Kostov and S. McIntyre, "Engineering Analysis and Design with ALEVMS and SpaceTime Methods", Archives of Computational Methods in Engineering, 21 (2014) 481508.    K. Takizawa, Y. Bazilevs, T.E. Tezduyar, C.C. Long, A.L. Marsden and K. Schjodt, "ST and ALEVMS Methods for PatientSpecific Cardiovascular Fluid Mechanics Modeling", Mathematical Models and Methods in Applied Sciences, 24 (2014) 24372486.    K. Takizawa, T.E. Tezduyar and N. Kostov, "SequentiallyCoupled SpaceTime FSI Analysis of Bioinspired FlappingWing Aerodynamics of an MAV", Computational Mechanics, 54 (2014) 213233.    K. Takizawa and T.E. Tezduyar, "Main Aspects of the SpaceTime Computational FSI Techniques and Examples of Challenging Problems Solved", Mechanical Engineering Reviews, Japan Society of Mechanical Engineers, 1 (2014) CM0005, inaugural issue.    K. Takizawa, T.E. Tezduyar, A. Buscher and S. Asada, "SpaceTime InterfaceTracking with Topology Change (STTC)", Computational Mechanics, 54 (2014) 955971.    K. Takizawa, H. Takagi, T.E. Tezduyar and R. Torii, "Estimation of ElementBased ZeroStress State for Arterial FSI Computations", Computational Mechanics, 54 (2014) 895910.    K. Takizawa and T.E. Tezduyar, "SpaceTime Computation Techniques with Continuous Representation in Time (STC)", Computational Mechanics, 53 (2014) 9199.    K. Takizawa, T.E. Tezduyar, S. McIntyre, N. Kostov, R. Kolesar and C. Habluetzel, "SpaceTime VMS Computation of WindTurbine Rotor and Tower Aerodynamics", Computational Mechanics, 53 (2014) 115.    A. Corsini, F. Rispoli, A.G. Sheard, K. Takizawa, T.E. Tezduyar and P. Venturini, "A Variational Multiscale Method for ParticleCloud Tracking in Turbomachinery Flows", Computational Mechanics, 54 (2014) 11911202.    K. Takizawa, T.E. Tezduyar, J. Boben, N. Kostov, C. Boswell and A. Buscher, "FluidStructure Interaction Modeling of Clusters of Spacecraft Parachutes with Modified Geometric Porosity", Computational Mechanics, 52 (2013) 13511364.    M.A. Cruchaga, R.S. Reinoso, M.A. Storti, D.J. Celentano and T.E. Tezduyar, "Finite Element Computation and Experimental Validation of Sloshing in Rectangular Tanks", Computational Mechanics, 52 (2013) 13011312.    K. Takizawa, B. Henicke, A. Puntel, N. Kostov and T.E. Tezduyar, "Computer Modeling Techniques for FlappingWing Aerodynamics of a Locust", Computers & Fluids, 85 (2013) 125134.    Y. Bazilevs, K. Takizawa and T.E. Tezduyar, "Challenges and Directions in Computational FluidStructure Interaction", Mathematical Models and Methods in Applied Sciences, 23 (2013) 215221.    K. Takizawa, K. Schjodt, A. Puntel, N. Kostov and T.E. Tezduyar, "PatientSpecific Computational Analysis of the Influence of a Stent on the Unsteady Flow in Cerebral Aneurysms", Computational Mechanics, 51 (2013) 10611073.    K. Takizawa, D. Montes, S. McIntyre and T.E. Tezduyar, "SpaceTime VMS Methods for Modeling of Incompressible Flows at High Reynolds Numbers", Mathematical Models and Methods in Applied Sciences, 23 (2013) 223248.    K. Takizawa, D. Montes, M. Fritze, S. McIntyre, J. Boben and T.E. Tezduyar, "Methods for FSI Modeling of Spacecraft Parachute Dynamics and Cover Separation", Mathematical Models and Methods in Applied Sciences, 23 (2013) 307338.    P.A. Kler, L.D. Dalcin, R.R. Paz and T.E. Tezduyar, "SUPG and DiscontinuityCapturing Methods for Coupled Fluid Mechanics and Electrochemical Transport Problems", Computational Mechanics, 51 (2013) 171185.    Books   Y. Bazilevs, K. Takizawa and T.E. Tezduyar, Computational FluidStructure Interaction: Methods and Applications, Japanese Translation, Morikita Publishing, Tokyo, Japan (2015).    Y. Bazilevs, K. Takizawa and T.E. Tezduyar, Computational FluidStructure Interaction: Methods and Applications, Wiley (2013).    Editor of books   Y. Bazilevs, K. Takizawa and T.E. Tezduyar, Stabilized and Multiscale Methods in Fluid Dynamics Modeling, Mathematical Models and Methods in Applied Sciences, Vol. 25, No. 12, World Scientific (2015).    Y. Bazilevs, K. Takizawa and T.E. Tezduyar, FluidStructure Interaction, Computational Mechanics, Vol. 55, No. 6, Springer (2015).    Book chapters   K. Takizawa and T.E. Tezduyar "SpaceTime Computational Analysis in Energy Applications." Flow Simulation with the Finite Element Method (2017) : 278288, in Japanese.    K. Takizawa and T.E. Tezduyar "SpaceTime Computational Methods and Applications." Flow Simulation with the Finite Element Method (2017) : 249269, in Japanese.    K. Takizawa, T.E. Tezduyar and T. Sasaki "Estimation of ElementBased ZeroStress State in Arterial FSI Computations with Isogeometric Wall Discretization." Biomedical Technology: Modeling, Experiments and Simulation, Lecture Notes in Applied and Computational Mechanics (August 2017) : 101122, published online.    K. Takizawa, T.E. Tezduyar, T. Terahara and T. Sasaki "Heart Valve Flow Computation with the SpaceTime Slip Interface Topology Change (STSITC) Method and Isogeometric Analysis (IGA)." Biomedical Technology: Modeling, Experiments and Simulation, Lecture Notes in Applied and Computational Mechanics (August 2017) : 7799, published online.    T. Kuraishi, K. Takizawa and T.E. Tezduyar "SpaceTime Computational Analysis of Tire Aerodynamics with Actual Geometry, Road Contact and Tire Deformation." : A special volume to be published by Springer.Accepted    T. Sawada, H. Watanabe, K. Takizawa and T.E. Tezduyar "FluidStructure Interaction Analysis." Flow Simulation with the Finite Element Method (2017) : 209247, in Japanese.    T.E. Tezduyar, K. Takizawa and Y. Bazilevs "FluidStructure Interaction and Flows with Moving Boundaries and Interfaces." Encyclopedia of Computational Mechanics Second Edition, Part 2 Fluids (December 2017) : Wiley, published online.    Y. Otoguro, K. Takizawa and T.E. Tezduyar "A GeneralPurpose NURBS Mesh Generation Method for Complex Geometries." : A special volume to be published by Springer.Accepted    A. Castorrini, A. Corsini, F. Rispoli, P. Venturini, K. Takizawa and T.E. Tezduyar, "SUPG/PSPG Computational Analysis of Rain Erosion in WindTurbine Blades", Chapter to appear in Advances in Computational FluidStructure Interaction (eds. Y. Bazilevs and K. Takizawa), Modeling and Simulation in Science, Engineering and Technology, Springer.    H. Suito, K. Takizawa, V.Q.H. Huynh, D. Sze, T. Ueda and T.E. Tezduyar, "FSI Analysis of the Blood Flow and Geometrical Characteristics in the Thoracic Aorta", Chapter to appear in Advances in Computational FluidStructure Interaction (eds. Y. Bazilevs and K. Takizawa), Modeling and Simulation in Science, Engineering and Technology, Springer.    K. Takizawa and T.E. Tezduyar, "New Directions in SpaceTime Computational Methods", Chapter to appear in Advances in Computational FluidStructure Interaction (eds. Y. Bazilevs and K. Takizawa), Modeling and Simulation in Science, Engineering and Technology, Springer.    T.E. Tezduyar, K. Takizawa and Y. Bazilevs, "FluidStructure Interaction and Flows with Moving Boundaries and Interfaces", Chapter to appear in Encyclopedia of Computational Mechanics, Volume 3: Fluids (eds. E. Stein, R. De Borst and T.J.R. Hughes), Wiley.    L. Cardillo, A. Corsini, G. Delibra, F. Rispoli and T.E. Tezduyar, "Flow Analysis of a WaveEnergy Air Turbine with the SUPG/PSPG Method and DCDD", Chapter to appear in Advances in Computational FluidStructure Interaction (eds. Y. Bazilevs and K. Takizawa), Modeling and Simulation in Science, Engineering and Technology, Springer.    K. Takizawa, Y. Bazilevs, T.E. Tezduyar, M.C. Hsu, O. Oiseth, K.M. Mathisen, N. Kostov and S. McIntyre, "Computational Engineering Analysis and Design with ALEVMS and ST Methods", Chapter 13 in Numerical Simulations of Coupled Problems in Engineering (ed. S.R. Idelsohn), Computational Methods in Applied Sciences, Vol. 33, Springer (2014) 321353.    K. Takizawa and T.E. Tezduyar, "FluidStructure Interaction Modeling of PatientSpecific Cerebral Aneurysms", Visualization and Simulation of Complex Flows in Biomedical Engineering (eds. R. Lima, Y. Imai, T. Ishikawa and M.S.N. Oliveira), Lecture Notes in Computational Vision and Biomechanics, Vol. 12, Springer (2014) 2545.    K. Takizawa, Y. Bazilevs, T.E. Tezduyar, C.C. Long, A.L. Marsden and K. Schjodt, "PatientSpecific Cardiovascular Fluid Mechanics Analysis with the ST and ALEVMS Methods", Chapter 4 in Numerical Simulations of Coupled Problems in Engineering (ed. S.R. Idelsohn), Computational Methods in Applied Sciences, Vol. 33, Springer (2014) 71102.    Y. Bazilevs, K. Takizawa, T.E. Tezduyar, M.C. Hsu, N. Kostov and S. McIntyre, "Computational WindTurbine Analysis with the ALEVMS and STVMS Methods", Chapter 14 in Numerical Simulations of Coupled Problems in Engineering (ed. S.R. Idelsohn), Computational Methods in Applied Sciences, Vol. 33, Springer (2014) 355386.    K. Takizawa, K. Schjodt, A. Puntel, N. Kostov and T.E. Tezduyar, "PatientSpecific Computational Fluid Mechanics of Cerebral Arteries with Aneurysm and Stent", Chapter 7 in Multiscale Simulations and Mechanics of Biological Material (eds. S. Li and D. Qian), Wiley (2013).    Refereed conference papers   M. Omori, T. Kuraishi, K. Takizawa and T.E. Tezduyar "High Spatial and Temporal Resolution Computational Analysis of Flow Between an Engine Cylinder and Moving Piston." Proceedings of the 11th Pacific Symposium on Flow Visualization and Image Processing (2017)    H. Hattori, K. Takizawa, T.E. Tezduyar, K. Miyagawa, M. Nomi, M. Isono, H. Uchida and M. Kawai, "Computational Analysis of FlowDriven String Dynamics in a Turbomachinery", Paper No. AICFM13154, Proceedings of 13th Asian International Conference on Fluid Machinery, Tokyo, Japan (2015).    H. Mochizuki, K. Takizawa, H. Hattori, T.E. Tezduyar, L. Pan and S. Mei, "STVMS Computational Analysis of VerticalAxis WindTurbine Aerodynamics", Paper No. AICFM13150, Proceedings of 13th Asian International Conference on Fluid Machinery, Tokyo, Japan (2015).    Y. Otoguro, T. Terahara, K. Takizawa, T.E. Tezduyar, T. Kuraishi and H. Hattori, "A HigherOrder STVMS Method for Turbocharger Analysis", Paper No. AICFM13153, Proceedings of 13th Asian International Conference on Fluid Machinery, Tokyo, Japan (2015).  
Editorial Positions   Editor, Surveys in Mathematical Sciences. European Mathematical Society. (2013  2017)
  Editor, Modeling and Simulation in Science, Engineering and Technology, Series by Springer. (2016  2017)
  Editor, Computational Mechanics. Springer. (2004  2017)
  Associate Editor, Journal of Mechanics. Cambridge University Press. (2014  2017)
  Associate Editor, Mathematical Models and Methods in Applied Sciences. World Scientific. (2004  2017)
  Member of the Editorial Board, Journal of Fluid Science and Technology. Japan Society of Mechanical Engineers. (2008  2017)
  Member of the Editorial Board, Archives of Computational Methods in Engineering. Springer. (2015  2017)
  Member of the Editorial Board, International Journal for Numerical Methods in Biomedical Engineering. Wiley. (2010  2017)
  Member of the Editorial Board, Computer Methods in Applied Mechanics and Engineering. Elsevier. (1997  2017)
  Member of the Editorial Board, International Journal for Numerical Methods in Fluids. Wiley. (1992  2017)
  Member of the Editorial Board, Journal of Mechanical Engineering, Slovak Academy of Sciences. (2003  2014)
  Series Editor, Computational Mechanics Series. Wiley. (2010  2017)

Awards, Prizes, & Fellowships   Highly Cited Researcher (Computer Science), Clarivate Analytics (11/15/2017)
  Highly Cited Researcher (Engineering), Clarivate Analytics (11/15/2017)
  Highly Cited Researcher (Engineering), Thomson Reuters (September 2015)
  Visiting Fellow, Waseda Institute for Advanced Study, Waseda University, Tokyo,Japan (July 2015)
  Highly Cited Researcher (Computer Science), Thomson Reuters (September 2015)
  Highly Cited Researcher (Computer Science), Thomson Reuters (June 2014)
  Highly Cited Researcher (Engineering), Thomson Reuters (June 2014)
  Eminent Engineer, Tau Beta Pi, The Engineering Honor Society, Colorado Zeta at US Air Force Academy (March 21, 2013)
  Computational Mechanics Award, Japan Association for Computational Mechanics (December 13, 2013)

Positions Held   Member, Timoshenko Medal Committee, Applied Mechanics Division, ASME. (2006  2016)
  Member, Warner T. Koiter Medal Committee, Applied Mechanics Division, ASME. (2006  2016)
  Member, Daniel C. Drucker Medal Committee, Applied Mechanics Division, ASME. (2006  2016)
  Member, Ted Belytschko Applied Mechanics Award Committee, Applied Mechanics Division, ASME. (2006  2016)
  Member, Thomas J.R. Hughes Young Investigator Award Committee, Applied Mechanics Division, ASME. (2006  2016)
  Professor, Faculty of Science and Engineering, Waseda University. (2017  2018)
  Member, Executive Council, International Association for Computational Mechanics. (2002  2014)
  Member, Awards Committee, International Association for Computational Mechanics. (2002  2014)
  Member (Founding Chair), Committee on FluidStructure Interaction, Applied Mechanics Division, ASME. (2006  2016)
  Chair, Computational Fluid Dynamics and FluidStructure Interaction Technical Thrust Area, US Association for Computational Mechanics. (2015  2017)
  Member, Thomas K. Caughey Dynamics Award Committee, Applied Mechanics Division, ASME. (2007  2016)

