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)

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/4314
File
Title
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)
Title Alternative
Numerical Study on the Laminar Flow over a Backward Facing Step (On the Boundary Condition at the Convex Sharp Corner)
Author
氏名 中西 助次
ヨミ ナカニシ スケツグ
別名 Nakanishi Suketsugu
氏名 大坂 英雄
ヨミ オオサカ ヒデオ
別名 Osaka Hideo
Subject
Fluid dynamics
Numerical method
Computational fluid dynamics
Separation point
Laminar flow
Boundary condition
Backward facing step flow.
Abstract

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.

Journal Title
広島工業大学研究紀要
Volume
22
Spage
129
Epage
136
Published Date
1988
Publisher
広島工業大学
ISSN
03851672
NCID
AN0021271X
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima