基于ENO格式的二维水流水质耦合模型数值模拟(修改稿)
首发时间:2010-04-01
摘要:应用高精度ENO(Essentially Non-oscillatory Schemes)格式结合有限体积法在非结构三角形网格上建立耦合型二维水流-水质的数学模型,采用Roe格式求解跨单元边界的法向通量。用Fortran语言进行编程计算,并采用该模型模拟污染物随溃坝水流的流动变化。模拟结果表明ENO格式精度高,稳定性好,为工程领域中的水流水质问题的处理提供了依据,具有较高的实用价值。
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Numerical simulation of 2D hydrodynamics and water quality based on ENO schemes
Abstract:A mathematical model for simulating 2D hydrodynamics and water quality based on the ENO scheme and finite volume method on the unstructured triangular mesh. The numerical normal flux of variables across the interface between cells is estimated by the Roe scheme. The relevant programs were compiled by use of the Fortran language. By using the proposed model, the flow property and water quality in dam break are calculated; The result show that the ENO scheme has higher accuracy and better stability. The research results have provided a good basis for research of hydrodynamic and water quality in river flows, hydraulic engineering, etc.
Keywords: ENO schemes finite volume method unstructured triangular mesh simulation
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No.4142252327412700****
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