한국전산유체공학회:학술대회논문집
- 1998.11a
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- Pages.42-47
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- 1998
Unstructured-grid Pressure-based Method for Analysing Incompressible flows
비정형격자 압력기준 유동해석기법을 이용한 비압축성 유동해석
Abstract
The pressure-based methods are very popular in CFD because it requires less computer core memory compared to other coupled or density-based solvers. Currently structured-mesh methodology based on pressure-based algorithm is quite mature to apply to the practical problems. The unstructured mesh method needs much more computer memory than the structured-mesh method. However the pressure-based method utilizing the sequential approach does not require very large memory used for unstructured-mesh density-based solvers. The present study has developed the unstructured grid pressure-based method. Cell-centered finite volume method was selected due to robustness for imposing various boundary conditions and easy implementation of higher-order upwind scheme. The predictive capability of present method has validated against several benchmark problems.