• Title/Summary/Keyword: Vortex particle disposal

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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.;Lee, S.-J.;Suh, J.-C.
    • Journal of computational fluids engineering
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    • v.22 no.1
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    • pp.51-58
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    • 2017
  • 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.