Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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A numerical study of the incompressible flow over a circular cylinder near a plane wall using the Immersed Boundary - Finite Difference Lattice Boltzmann Method

가상경계 유한차분 격자 볼츠만 법을 이용한 평판근처 원형 실린 더 주위의 비압축성 유동에 관한 수치적 연구

  • 양희주 (부산대학교 대학원 기계공학부) ;
  • 정해권 (부산대학교 기계공학부) ;
  • 김래성 (부산대학교 기계공학부) ;
  • 하만영 (부산대학교 기계공학부)
  • Published : 2007.05.30
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Abstract

In this paper, incompressible flow over a cylinder near a plane wall using the Immersed Boundary. Finite Difference Lattice Boltzmann Method (IB-FDLBM) is implemented. In this present method, FDLBM is mixed with IBM by using the equilibrium velocity. We introduce IBM so that we can easy to simulate bluff-bodies. With this numerical procedure, the flow past a circular cylinder near a wall is simulated. We calculated the flow patterns about various Reynolds numbers and gap ratios between a circular cylinder and plane wall. So these are enabled to observe for vortex shedding. The numerical results are found to be in good agreement with those of previous studies.

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