2026-03-13T14:11:52Z https://it-hiroshima.repo.nii.ac.jp/oai

oai:it-hiroshima.repo.nii.ac.jp:00000500 2023-07-25T10:48:14Z 1:17:202

層流における後ろ向きステップ流れの数値実験(鋭い角の境界条件について) Numerical Study on the Laminar Flow over a Backward Facing Step (On the Boundary Condition at the Convex Sharp Corner) 中西, 助次 ナカニシ, スケツグ 大坂, 英雄 オオサカ, ヒデオ Nakanishi, Suketsugu Osaka, Hideo Fluid dynamics Numerical method Computational fluid dynamics Separation point Laminar flow Boundary condition Backward facing step flow. application/pdf The specification of computational boundary conditions at the convex sharp corner requires special considerations, and is an important problem for the accuracy of the numerical solution. In this paper, this problem is treated numericaly by the use of finite difference method for the stream-function vorticity equations. Seven different methods on the specification of the vorticity at the convex sharp corner, which were examined by P.J. Roache and T. J. Mueller, are reconsidered on the laminar flow over a backward facing step in the two-dimensional channel. The consideration for the each methods and the check of the results for the each methods were made on the length of recirculation zone, the separation point of flow and the position of vortex center. departmental bulletin paper 広島工業大学 1988 VoR application/pdf 広島工業大学研究紀要 22 129 136 AN0021271X 03851672 https://it-hiroshima.repo.nii.ac.jp/record/500/files/kenkyukiyo22129.pdf https://it-hiroshima.repo.nii.ac.jp/records/500 jpn