正方形断面を有する二次元障害物周りの乱流数値解析

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概要

• 論文の詳細を見る

• The assessment of turbulence models including a second-moment closure and the standard k-ε model has been performed for calculating a turbulent separated flow over a surface mounted obstacle. The results indicate more complex characteristics in this problem compared to backward facing step flow which is often used as the test case of turbulence models. Although the required computational effort is much higher than that of the k-ε model, the superior performance of the second-moment closure model is evident in representing the velocity field immediately above the obstacle as well as the pressure variation along the channel. It is indicated that the shortcomings of the k-ε model are attributable to the erroneous behaviour of the production rate of turbulent kinetic energy as calculated according to the eddy viscosity assumption.

• 一般社団法人日本機械学会の論文
• 1992-11-25

著者

• 小尾 晋之介

  慶応義塾大学理工学部機械工学科

• Scheuerer Georg

  Asc Gmbh

• PERIC Milovan

  LSTM, University of Erlangen

• Peric Milovan

  Lstm University Of Erlangen

• 小尾 晋之介

  慶応義塾大学大学院

関連論文

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• 大きな再循環を伴う円筒容器内の乱流特性
• 平板に衝突する渦輪の挙動 : 平板面内の速度場(:渦)
• 周期的吸込み吹出しによる乱流はく離の制御
• 正方形断面を有する二次元障害物周りの乱流数値解析

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