MATHEMATICAL MODELING OF CIRCULATION AND ITS VERIFICATION

被引:0
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作者
Tao Jianhua (Department of Mechanics
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关键词
mathematical simulation; circulation; channel with step expansion;
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摘要
In this study,the mechanism of circulation generation in channel with stopexpansion is investigated.The circulation results from the balance between inertia force andbed-induced shear stress.Accordingly,the convective inertia term and the bottom resistance inthe momentum equation are essential to the simulation of circulation.By means of acorresponding 2-D model,the velocity fields of unsteady circulating are computed.Acomparison of the results with the velocity fields measured data is made and the agreement issatisfactory.
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页码:34 / 42
页数:9
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