한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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Hybrid Particle-Mesh 방법에 적합한 다중영역 방법

A MULTI-DOMAIN APPROACH FOR A HYBRID PARTICLE-MESH METHOD

  • 이승재 (서울대학교 해양시스템공학연구소) ;
  • 서정천 (서울대학교 해양시스템공학연구소)
  • Lee, Seung-Jae (Research Institute of Marine System Engineering, Seoul National University) ;
  • Suh, Jung-Chun (Research Institute of Marine System Engineering, Seoul National University)
  • 투고 : 2014.02.27
  • 심사 : 2014.06.16
  • 발행 : 2014.06.30
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초록

A hybrid particle-mesh method as the combination between the Vortex-In-Cell (VIC) method and penalization method has been achieved in recent years. The VIC method, which is based on the vorticity-velocity formulation, offers particle-mesh algorithms to numerically simulate flows past a solid body. The penalization method is used to enforce boundary conditions at a body surface with a decoupling between body boundaries and computational grids. The main advantage of the hybrid particle-mesh method is an efficient implementation for solid boundaries of arbitrary complexity on Cartesian grids. However, a numerical simulation of flows in large domains is still not too easy. In this study, a multi-domain approach is thus proposed to further reduce computation cost and easily implement it. We validate the implementation by numerical simulations of an incompressible viscous flow around an impulsively started circular cylinder.

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참고문헌

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피인용 문헌

  1. Vortex Shedding Frequency for a 2D Hydrofoil with a Truncated Trailing Edge vol.51, pp.6, 2014, https://doi.org/10.3744/SNAK.2014.51.6.480
  2. Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge vol.2015, pp.1687-5605, 2015, https://doi.org/10.1155/2015/565417
  3. Penalized VIC 방법에서 장시간 유동 해석을 위한 원거리 와도 입자 처리 vol.22, pp.1, 2014, https://doi.org/10.6112/kscfe.2017.22.1.051