| TWO MODIFICATORY K-ε TURBULENCE MODELS FOR TURBULENT SWIRLING FLOWS |
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| 引用本文： | Wang ZeInstitute of Environment Science and Engineering,Hohai University,Nanjing 210098,ChinaLiu Wei mingDaresbury Laboratory Warrington,WA4 4AD,UK. TWO MODIFICATORY K-ε TURBULENCE MODELS FOR TURBULENT SWIRLING FLOWS[J]. 水动力学研究与进展(B辑), 2003, 15(2) |
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| 作者姓名： | Wang ZeInstitute of Environment Science and Engineering Hohai University Nanjing 210098 ChinaLiu Wei mingDaresbury Laboratory Warrington WA4 4AD UK |
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| 作者单位： | Wang ZeInstitute of Environment Science and Engineering，Hohai University，Nanjing 210098，ChinaLiu Wei mingDaresbury Laboratory Warrington，WA4 4AD，UK |
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| 摘 要： | 1 . ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｓｔａｎｄａｒｄＫ εｔｕｒｂｕｌｅｎｃｅｍｏｄｅｌｉｓｗｉｄｅｌｙｕｓｅｄｆｏｒｐｒｅｄｉｃｔｉｎｇｔｕｒｂｕｌｅｎｔｆｌｏｗｓｉｎｅｎｇｉｎｅｅｒｉｎｇａｐ ｐｌｉｃａｔｉｏｎｓ,ａｎｄｔｈｅｅｘｐｅｒｉｅｎｃｅｕｓｉｎｇｉｔｉｎｐｒａｃｔｉｃｅｈａｓｄｅｍｏｎｓｔｒａｔｅｄｔｈａｔｉｔｉｓｓｕｃｃｅｓｓｆｕｌｉｎ ｐｒｅｄｉｃｔｉｏｎｏｆｍａｎｙｔｕｒｂｕｌｅｎｔｆｌｏｗｓ,ｅｓｐｅｃｉａｌｌｙｔｈｅｓｉｍｐｌｅｓｈｅａｒｆｌｏｗ .Ｆｏｒｆｌｏｗｓｓｕｂｊｅｃ…
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| 关 键 词： | Modified K ε turbulence model turbulent swirling flow gradient Richardson number |
TWO MODIFICATORY K-ε TURBULENCE MODELS FOR TURBULENT SWIRLING FLOWS |
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| Wang Ze,Liu Wei-ming. TWO MODIFICATORY K-ε TURBULENCE MODELS FOR TURBULENT SWIRLING FLOWS[J]. Journal of Hydrodynamics, 2003, 15(2) |
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| Authors: | Wang Ze Liu Wei-ming |
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| Abstract: | Since the standard K-ε model used to predict the strongly swirling flow leads to a large deviation from experimental results, it is necessary to introduce modification to the standard K-ε model. Based on the algebraic Reynolds stress model and Bradshaw's turbulent length scale modification conception, we present two modified K-ε models. To investigate the behaviour of the modified turbulence models, they are used to predict two representative turbulent swirling flows. The computational results, after compared with the experimental data, show that the modified K-ε models substantially improve the prediction of the standard K-ε model for the turbulent swirling flows. |
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| Keywords: | turbulent swirling flow gradient Richardson number |
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