한국전산유체공학회:학술대회논문집
- 2007.04a
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- Pages.17-22
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- 2007
APPLICATION OF MOVING LEAST SQUARE METHOD IN CHIMERA GRID METHOD
중첩격자에 대한 이동최소자승법 적용 연구
Abstract
Chimera grid Method is widely used in Computational Fluid Dynamics due to its simplicity in constructing grid system over complex bodies. Especially, Chimera grid method is suitable for unsteady flow computations with bodies in relative motions. However, interpolation procedure for ensuring continuity of solution over overlapped region fails when so-call orphan cells are present. We have adopted MLS(Moving Least Squares) method to replace commonly used linear interpolations in order to alleviate the difficulty associated with orphan cells. MSL is one of interpolation methods used in mesh-less methods. A number of examples with MLS are presented to show the validity and the accuracy of the method.