陸屋根上に発生する円錐渦と非定常圧力特性に関するLES解析

概要

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The purpose of this paper is to investigate the motion of the conical vortex which lead to the large level of the negative pressure near the leading comer by LES analysis when flow attack oblique to the flat roof. First the present LES model is validated for the prediction of the pressure characteristics on the roof through comparison with the experimental data. Next, we study the pressure characteristics associated with the motion of the conical vortex in uniform and turbulent flows by using the computed results. As a result, it is clarified that the flow structures near the stagnation point rapidly change by the characteristics of uniform and turbulent flows and result in the strong conical vortex associated with large suction on a roof.
社団法人日本建築学会の論文
2007-11-30