水环境中紊动污染场深度平均二方程数值模拟新模式及其数值检验  

A new model and its numerical investigation for turbulent depth-averaged two-equation simulation in water environment

作　　者：余利仁[1] 张书农[2] 蔡树棠[3] 

机构地区：[1]上海电力学院 [2]河海大学 [3]中国科技大学

出　　处：《水利学报》1990年第3期13-21,共9页Journal of Hydraulic Engineering

摘　　要：根据改进的湍流k-w模式,提出了一个用于宽浅型水域深度平均数值模拟的湍流k-w二阶封闭模式.通过渠槽岸边排放数值分析证实,该模式在预测横流中侧向温差射流旋涡区时,与实验资料相符良好,和经典的深度平均κ-ε模式具有相同精度;在预测射流宽度时,新模式比κ-ε模式要更好一些.According to the improved turbulent k-w model, a new depth-averagedtwo order closure model ( k-w) suitable to simulate wide-shallow water bodies has been presenteg in this paper. Through a objective numerical investigation, it has been verified that the k-w model has the same accuracy as the k-ε model in the prediction of eddy region formed by lateral differential temperature jets with transverse currents, and the new developed model is better than the k- ε model in the prediction of jet widths.

关 键 词：水 环境 湍流 污染 物质 浓度 

分 类 号：X21[环境科学与工程—环境科学]