Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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APPLICATION OF MOVING LEAST SQUARE METHOD IN CHIMERA GRID METHOD

중첩격자에 대한 이동최소자승법 적용 연구

  • 이관중 (인하대학교 대학원 항공공학과) ;
  • 이승수 (인하대학교 기계공학부 항공우주) ;
  • 조진연 (인하대학교 기계공학부 항공우주)
  • Published : 2008.03.31
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Abstract

Chimera grid methods have been widely used in Computational Fluid Dynamics due to its simplicity in constructing grid systems over complex bodies, and suitability for unsteady flow computations with bodies in relative motion. However, the interpolation procedure for ensuring the continuity of the solution over overlapped regions fails when the so-called orphan cells are present. We have adopted the MLS(Moving Least Squares) method to replace commonly used linear interpolations in order to alleviate the difficulty associated with the orphan cells. MLS is one of the 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.

Keywords

References

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