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The numerical calculation method is based on unstructured mesh well adaptability to the complex boundary, and the FVM (Finite Volume Method) form good conservation to the convective term flux. This coupled model adopting Roe second-order upwind scheme of FVM numerical analyzed to shallow water equation, and successfully introduced mild slope equation with weakly nonlinear amplitude dispersion, using...
For the evolution of the coastal, suspended sediment transport is an important factor. A large amount of suspended sediments transported under the wave and current action in the radial sand ridge field of the South Yellow Sea. This article introduces a numerical model which has adaptability to the complex border and the FVM (Finite Volume Method) conservation character. The character of this model...
The characteristic of data stream is that it has a huge size and its data change continually, which need to be responded quickly, since the times of query is limited. The continuous query and data stream approximate query model are introduced in this paper. Then, the query optimization of data stream and traditional database are compared. Finally, technology of continuous query optimization over data...
A special penalty method is presented to improve the accuracy of the standard penalty method for solving Stokes equation with nonconforming finite element. It is shown that this method with a larger penalty parameter can achieve the same accuracy as the standard method with a smaller penalty parameter. The convergence rate of the standard method is just half order of this penalty method when using...
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