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为保障流溪河水量调度的需要,构建了广州片区一维河网水动力模型,并对其精度进行了验证分析。结果表明,模型精度较高,可用于流溪河水量调度的水流传播数值模拟计算。为较准确地确定溪流河水流传播时间,通过投放物理浮标跟踪等技术分析了水流从人和坝坝下到达海心沙的时间,利用建立的水动力模型对物理浮标跟踪结果进行了验证,同时采用该模型模拟计算了下泄流量分别为250、350m3/s和物理浮标测流条件下水流从人和坝坝下到达海心沙的传播时间。
In order to ensure the need of water flow regulation in Liuxi River, a one-dimensional hydrodynamic model of Guangzhou River is constructed and its accuracy is verified. The results show that the model has high precision and can be used to simulate the water flow of Liuxi River water flow regulation. In order to determine the flow time of stream flow more accurately, the time of flowing water from people and dam dam to sea sand was analyzed by using physical buoy tracking technology and the results of physical buoy tracking were verified by the established hydrodynamic model. Meanwhile, The model was used to simulate the propagation time of the water flow from the dam and the dam to the sea-sand under the condition of 250,350m3 / s discharge flow and the physical buoyance measurement flow respectively.