路面径流污染物排放不符合冲刷模型描述的排污规律。
Pollutant discharge of urban road runoff does not follow the regulation of Wash off model.
通过建立一个垂直二维紊流模型来模拟管道周围流场。建立泥沙冲刷模型来模拟海床底面变化。
A vertical two-dimensional flow model is developed to model the current around pipeline. A scour model is developed to model the change of bed level.
应用建立的水沙数学模型以及河岸冲刷模型，模拟了一概化弯道在持续清水冲刷下的主流线位置、断面形态、主槽比降的变化过程，模拟结果符合弯道演变规律。
The model is applied to forecast the variation process of main stream direction, cross section and channel slope of a conceptualized curved river under the erosion of clear water.
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