Abstract
In this study, the mechanism of circulation generalation in channel with stop expansion is investigated. The circulation results from the balance between inertia force and bed-induced shear stress. Accordingly, the convective inertia term and the bottom resistance in the momentum equation are essential to the simulation of circulation. By means of a corresponding 2-D model, the velocity fields of unsteady circulating are computed. A comparison of the results with the velocity fields measured data is made and the agreement is satisfactory.
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Jianhua, T. Mathematical modeling of circulation and its verification. Acta Mech Sinica 2, 34–42 (1986). https://doi.org/10.1007/BF02487879
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DOI: https://doi.org/10.1007/BF02487879