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- 2008.10
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2008
A Fully-implicit Velocity Pressure coupling Algorithm-IDEAL and Its Applications
Dong-Liang SUN
,
Zhi-Guo QU
,
Ya-Ling HE
외 1명
한국전산유체공학회 학술대회논문집
2008.10
학술대회자료
A Fully-implicit Velocity Pressure coupling Algorithm-IDEAL and Its Applications
Dong-Liang SUN
,
Zhi-Guo QU
,
Ya-Ling HE
외 1명
한국전산유체공학회 학술대회논문집
2008.03
학술대회자료
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초록· 키워드
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An efficient segregated algorithm for the coupling of velocity and pressure of incompressible fluid flow, called IDEAL (Inner Doubly-Iterative Efficient Algorithm for Linked-Equations), has been proposed by the present authors. In the algorithm there exist double inner iterative processes for pressure equation at each iteration level, which almost completely overcome two approximations in SIMPLE algorithm. Thus the coupling between velocity and pressure is fully guaranteed, greatly enhancing the convergence rate and stability of solution process. The performance of the IDEAL algorithm for three-dimensional incompressible fluid flow and heat transfer problems is analyzed and a systemic comparison is made between the algorithm and three other most widely-used algorithms (SIMPLER, SIMPLEC and PISO). It is found that the IDEAL algorithm is the most robust and the most efficient one among the four algorithms compared. This new algorithm is used for the velocity prediction of a new interface capturing method ?VOSET ,also proposed by the present author. It is found that the combination of VOSET and IDEAL can appreciably enhance both the interface capture accuracy and convergence rate of computations.
목차
Abstract
1. INTRODUCTION
2. BRIEF REVIEW OF THE IDEAL ALGORITHM
3. COMPARISON CONDITIONS AND CONVERGENCE CRITERION
4. NUMERICAL COMPARISONS
5. CONCLUSIONS
ACKNOWLEDGMENTS
REFERENCES
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