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THE SELF-SIMILARITY OF A JET IN CROSSFLOW |
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| 作者姓名： | Xia Li ping Yang Zhi feng Institute of Environmental Sciences Beijing Normal University Beijing P.R.China Lam Kit Ming |
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| 作者单位： | Xia Li ping，Yang Zhi feng Institute of Environmental Sciences，Beijing Normal University，Beijing 100875，P.R.China Lam Kit Ming Department of Civil Engineering，The University of Hong Kong，Hong Kong，P.R.China |
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| 摘 要： | 1 . ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｊｅｔｉｎｃｒｏｓｓｆｌｏｗ ,ｗｉｔｈｈｉｇｈｌｙｃｏｍｐｌｉｃａｔｅｄｔｕｒｂｕｌｅｎｃｅ ,ｉｓａｃｌａｓｓｉｃｆｌｏｗ ｐｒｏｂｌｅｍｉｎｆｌｕｉｄｍｅｃｈａｎｉｃｓ.Ｓｉｍｕｌｔａｎｅｏｕｓｌｙ ,ｉｔｉｓｃｒｕｃｉａｌｔｏｍａｎｙｅｎｇｉｎｅｅｒｉｎｇａｐｐｌｉｃａｔｉｏｎｓ .Ｅｘａｍｐｌｅｓｉｎｅｎｖｉｒｏｎｍｅｎｔａｌｓｉｔｕａｔｉｏｎｓａｒｅｄｉｓｃｈａｒｇｅｏｆｓｔａｃｋｅｍｉｓｓｉｏｎｉｎｔｏｔｈｅａｔｍｏｓｐｈｅｒｅａｎｄｏｆｗａｓｔｅｗａｔｅ…
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| 关 键 词： | jet in crossflow RNG k ε turbulence model self similarity |
ON THE SELF-SIMILARITY OF A JET IN CROSSFLOW |
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| Xia Li ping,Yang Zhi feng Institute of Environmental Sciences,Beijing Normal University,Beijing ,P.R.China Lam Kit Ming.ON
THE SELF-SIMILARITY OF A JET IN CROSSFLOW[J].Journal of Hydrodynamics,2000,12(1):117-126. |
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| Authors: | Xia Li-ping Yang Zhi-feng Lam Kit Ming |
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| Abstract: | The RNG k-ε turbulence model is adopted to investigate a turbulent round jet issuing into crossflow, with the Reynolds number at jet exit of Re=6000 and jet-to crossflow velocity ratio of r=8. With the CFD code, FLUENT, the relations of dimensional analysis are successfully reproduced and the calculated coefficients agree well with the experimental measurements of Wong (1991) and Chu (1996). The investigations are then taken on the velocity, stream function and vorticity at the far field of the jet. It shows that at least within the covered range herein, the jet at the far field is self-similar. |
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| Keywords: | jet-in-crossflow self-similarity |
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