Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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DISPOSAL OF FAR-FIELD VORTEX PARTICLES FOR LONG-TERM SIMULATIONS IN PENALIZED VICMETHOD

Penalized VIC 방법에서 장시간 유동 해석을 위한 원거리 와도 입자 처리

  • Jo, E.B. (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Lee, S.-J. (Research Institute of Marine Systems Engineering, Seoul National University) ;
  • Suh, J.-C. (Department of Naval Architecture and Ocean Engineering, Seoul National University)
  • 조은별 (서울대학교 조선해양공학과) ;
  • 이승재 (서울대학교 해양시스템공학연구소) ;
  • 서정천 (서울대학교 조선해양공학과)
  • Received : 2016.12.01
  • Accepted : 2017.02.10
  • Published : 2017.03.31
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Abstract

A penalized VIC method offers an efficient hybrid particle-mesh algorithm to simulate an incompressible viscous flow passing a solid body in an infinite domain. In this manner, the computational domain needs to be restricted to a relatively small region to reduce computational cost which would be very high in case of using a large domain. In this paper, we present how to dispose of far-field particles to avoid an unnecessarily large computational domain. The present approach constraints expansion of the domain and thus prevents the incremental computational cost. To validate the numerical approach, a flow around an impulsively started sphere was simulated for Reynolds numbers of 100 and 1000.

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References

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