Seamless Virtual Boundary Method for Incompressible Flow Simulation with Heat Transfer(<Special Issue>The Forefront of Multi-Physics CFD/EFD)

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  • NISHIDA Hidetoshi
    Division of Mechanical and System Engineering, Kyoto Institute of Technology
  • TAJIRI Kyohei
    Division of Mechanical and System Engineering, Kyoto Institute of Technology

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Other Title
  • 熱流動を伴う非圧縮性流れ解析に対するシームレス仮想境界法(<小特集>マルチフィジックスCFD/EFDの最前線)
  • 熱流動を伴う非圧縮性流れ解析に対するシームレス仮想境界法
  • ネツ リュウドウ オ トモナウ ヒアッシュクセイ ナガレ カイセキ ニ タイスル シームレス カソウ キョウカイホウ

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Abstract

In this paper, the seamless virtual boundary method is applied to the incompressible flow analysis with heat transfer. In the seamless virtual boundary method, the forcing term is added not only on the grid points near the boundary but also on the grid points inside the boundary, in order to satisfy the velocity conditions on the virtual boundary points. Then, the smooth physical quantities can be obtained. For the heat transfer, the forcing term satisfied the temperature condition has to be added to the energy equation. First, we validate the present approach for the natural convection in square cavity. The results show that the present solutions are in good agreement with reference solution. Next, we try to apply the present approach to the flow around a heated circular cylinder. Then it is concluded that the present seamless virtual boundary method is applicable to the incompressible flow analysis with heat transfer successfully.

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