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自然河流中污染物排放的一种远区计算模型
A Far-Field Numerical Model for Pollution Jet into Natural Rivers
【摘要】 建立了一个适合于自然河流中污染物排放的远区二维深度平均计算模型,此模型采用了自然河流中的大尺度湍流模拟理论,在离散过程中采用了上风格式及Peaceman-Rachford交替格式和Douglas交替格式,并应用于国内多条大、中、小型河流的污染物排放计算中,取得了广泛的成功。
【Abstract】 A2-D depth-average far-field numerical model that can be applied to simulate the jet pollution into natural river has been made in the paper.The theory of Large Scale Turbulent Simulation to natural river has been adopted in the model.It also used the upwind scheme of Peaceman-Rachford’s alternating scheme and Douglas alternating scheme in the diffusion process.The model has also been successfully applied to the jet pollution calculation of some large,middle and small rivers in China.
【关键词】 污染排放;
对流扩散;
数学模型;
浓度场;
深度平均;
COD;
【Key words】 discharge of sewage; convection-diffusion; numerical model; concentration distribution; depth-average; COD;
【Key words】 discharge of sewage; convection-diffusion; numerical model; concentration distribution; depth-average; COD;
【基金】 973国家重点基础研究专项资助项目(G1999022207)
- 【文献出处】 水文 ,Hydrology , 编辑部邮箱 ,2002年01期
- 【分类号】X142
- 【被引频次】2
- 【下载频次】129