한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 1999년도 춘계 학술대회논문집
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- Pages.98-105
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- 1999
비정렬격자 압력기준 유동해석기법을 이용한 정상 및 비정상 유동해석
Steady and Unsteady flows with Pressure-based Unstructured-grid Navier-Stokes Solver PUNS
초록
The Pressure-based Unstructured-grid Navier-Stokes Solver PUNS-2/3D for incompressible steady and unsteady viscous flows has been developed. It is based on nonstaggered cell-centered finite volume method. Second-order upwind scheme with least-square reconstruction is used for convective fluxes. The SIMPLE method is implemented to couple the pressure and velocity fields. And the time derivatives in the momentum equations are discretised using a second-order Euler backward-differencing scheme. The discretised linear equations are solved by the preconditioned Biconjugate Gradient Stabilized method(Bi-CGSTAB). The developed solver is applied to validation problems using hybrid meshes.
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