한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2002년도 춘계 학술대회논문집
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- Pages.8-15
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- 2002
병렬 유한요소 해석기법을 이용한 유동장 해석
Parallel Finite Element Simulation of the Incompressible Navier-stokes Equations
- 발행 : 2002.05.01
초록
For the large scale computation of turbulent flows around an arbitrarily shaped body, a parallel LES (large eddy simulation) code has been recently developed in which domain decomposition method is adopted. METIS and MPI (message Passing interface) libraries are used for domain partitioning and data communication between processors, respectively. For unsteady computation of the incompressible Wavier-Stokes equation, 4-step splitting finite element algorithm [1] is adopted and Smagorinsky or dynamic LES model can be chosen fur the modeling of small eddies in turbulent flows. For the validation and performance-estimation of the parallel code, a three-dimensional laminar flow generated by natural convection inside a cube has been solved. Then, we have solved the turbulent flow around MIRA (Motor Industry Research Association) model at