Waseda University · 공학
Tayfun E. Tezduyar 교수의 연구실은 유동역학 문제에서의 이동 경계와 인터페이스를 정확하게 해석하기 위한 고도화된 수치 해법을 주요 연구 분야로 삼고 있습니다. 특히 공간-시간 기반의 안정화 유한요소법(DSD/SST)을 핵심 기술로 활용하여 유체-구조 상호작용, 자유 표면 유동, 두상유동, 기계적 요소가 포함된 유동 문제를 다룹니다. 이들은 대규모 병렬 아키텍처를 기반으로 한 고성능 계산 기법과 함께, 메esh 이동 최소화 및 수치 오차 제어를 위한 혁신적인 메쉬 업데이트 기법도 개발하고 있습니다. 연구실은 실생활 응용 분야인 파arachute 설계, 혈관 유동 해석 등에까지 응용 가능한 정밀한 시뮬레이션 기술을 선도하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Abstract The interface‐tracking and interface‐capturing techniques we developed in recent years for computation of flow problems with moving boundaries and interfaces rely on stabilized formulations such as the streamline‐upwind/Petrov–Galerkin (SUPG) and pressure‐stabilizing/Petrov–Galerkin (PSPG) methods. The interface‐tracking techniques are based on the deforming‐spatial‐domain/stabilized space–time formulation, where the mesh moves to track the interface. The interface‐capturing techniques,
Abstract The space–time fluid–structure interaction (FSI) techniques developed by the Team for Advanced Flow Simulation and Modeling (T★AFSM) have been applied to a wide range of 3D computation of FSI problems, some as early as in 1994 and many with challenging complexities. In this paper, we review these space–time FSI techniques and describe the enhancements introduced recently by the T★AFSM to increase the scope, accuracy, robustness and efficiency of these techniques. The aspects of the FSI
The authors describe their work on the massively parallel finite-element computation of compressible and incompressible flows with the CM-200 and CM-5 Connection Machines. Their computations are based on implicit methods, and their parallel implementations are based on the assumption that the mesh is unstructured. Computations for flow problems involving moving boundaries and interfaces are achieved by using the deformable-spatial-domain/stabilized-space-time method. Using special mesh update sc
We discuss the stabilized finite element computation of unsteady incompressible flows, with emphasis on the space-time formulations, iterative solution techniques and implementations on the massively parallel architectures such as the Connection Machines. The stabilization technique employed in this paper is the Galerkin/least-squares (GLS) method. The Deformable-Spatial-Domain/Stabilized-Space-Time (DSD/SST) formulation was developed for computation of unsteady viscous incompressible flows whic
