한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 1995년도 추계 학술대회논문집
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- Pages.113-117
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- 1995
가압축성 기법을 이용한 비정렬 격자상에서의 비압축성 점성해석
Incompressible Viscous Analysis on Unstructured Meshes using Artificial Compressibility Method
초록
Viscous analysis on incompressible flows is performed using unstructured triangular meshes. A two-dimensional and axisymmetric incompressible Navier-Stokes equations are solved in time-marching form by artificial compressibility method. The governing equations are discretized by a cell-centered based finite-volume method. and a centered scheme is used for inviscid and viscous fluxes with fourth order artificial dissipation. An explicit multi-stage Runge-Kutta method is used for the time integration with local time stepping and implicit residual smoothing. Convergence properties are examined and solution accuracies are also validated with benchmark solution and experiment.
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