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Title :混合タイムスケールを用いた改良k-εモデルによる建物周辺気流の解析
Title alternative :CFD Analysis of flowfield around building using revised k-ε models based on mixed time-scale
Authors :白澤, 多一
持田, 灯
吉野, 博
村上, 周三
富永, 禎秀
Publisher :日本風工学会
Issue Date :2002
Journal Title :風工学シンポジウム論文集
Volume :17
Start Page :201
End Page :206
Abstract :The flowfields around a front-step and a cubic shaped building model placed within the surface boundary layer were analyzed by using various k-ε models; namely standard k-ε, Durbin’s revised k-ε and revised k-ε with mixed time-scale concept. The calculated results are compared with those of wind tunnel experiment. Turbulent kinetic energy k around the windward corner is overestimated by the standard k-ε and the Ω type revised k-ε models, while it is improved by the S type model and the model proposed by Durbin. However, all revised k-ε models overestimate the reattachment length behind the building in comparison with the experimental data.
Keywords :Revised k-ε model
Mixed time-scale
front-step
cube
Type Local :Conference Paper
Language :jpn
URI :http://hdl.handle.net/10623/29489
Appears in Collections:08 日本風工学会

Please use this identifier to cite or link to this item: http://hdl.handle.net/10623/29489

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