前山河水力冲淤排污试验及模拟验证

为了研究前山河水力冲淤的可行性,在前山河水力冲淤排污实验的基础上,采用破开算子和特征线的方法建立水动力模型,采用跳点格式建立水质模型,将水动力模型与水质模型耦合,模拟前山河的流场及浓度场,并进行了验证,提出了水闸的较优运行方案.实验与模拟结果都表明水力冲污可以有效地改善前山河整体的水质状况.

Experiment of Hydraulic Washing Silt in the River Qianshan and the Model Validation

The hydraulic washing is a simple and feasible way to improve the water quality situation of rivers. In this paper, a mathematic model is develoned to simulate, calculate and validate the velocity, the orientation and the water quality of the flow in the river. In the model, a split approach and characteristic method is used to model the water flow, and a jumping dot method is used to model the water quality. A better running project is also put forward for the water gates. The experiment and simulation results both indicate that the river's quality can be improved efficiently in this way, except some accumulation of pollution around the outfall.