| DISSIPATION EFFECT ON THE FLOW OVER MOUNTAINS |
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| 作者姓名： | 伍荣生 方娟 |
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| 作者单位： | Department of Atmospheric Sciences Nanjing University，Nanjing 210093，Department of Atmospheric Sciences，Nanjing University，Nanjing 210093 |
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| 基金项目： | The work is supported by the National Natural Science Foundation of China. |
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| 摘 要： | In the paper,the turbulent dissipation is considered in the model for studying the flow overmountains.The governing equation is a first order ordinary differential equation derived from analgebraic equation without dissipation case.The solution is sensitive to the upstream condition ofdissipation.The dissipation not only reduces the strength of discontinuity but also changes theproperties of the governing equation.In the paper,the qualitative characteristic features of thegoverning equation are discussed.The numerical results with super and sub-critical cases are alsodiscussed in detail.The results show that the turbulent dissipation is an important factor and is notnegligible.
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DISSIPATION EFFECT ON THE FLOW OVER MOUNTAINS |
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| Wu Rongsheng Fang Juan.DISSIPATION EFFECT ON THE FLOW OVER MOUNTAINS[J].Acta Meteorologica Sinica,1997(2). |
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| Authors: | Wu Rongsheng Fang Juan |
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| Institution: | Wu Rongsheng Fang Juan Department of Atmospheric Sciences,Nanjing University,Nanjing 210093 |
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| Abstract: | In the paper,the turbulent dissipation is considered in the model for studying the flow over mountains.The governing equation is a first order ordinary differential equation derived from an algebraic equation without dissipation case.The solution is sensitive to the upstream condition of dissipation.The dissipation not only reduces the strength of discontinuity but also changes the properties of the governing equation.In the paper,the qualitative characteristic features of the governing equation are discussed.The numerical results with super and sub-critical cases are also discussed in detail.The results show that the turbulent dissipation is an important factor and is not negligible. |
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| Keywords: | turbulent dissipation flow over mountains governing equation |
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