采用一维非恒定流方程模拟地下排水管网内的水流，并给出泵站、闸门、淹没出流管道等排水系统的处理方法。
The flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.
从二维浅水非恒定流的控制方程出发，建立了一个二维湖泊流体动力学模型。
Based on the two-dimension adlittoral non-invariablenes flow control equation of lakes, a hydrodynamic model of lakes was built up.
建立了珠江三角州河网区一维非恒定流水动力学数学模型，并根据实测资料对模型进行了率定验证；
A 1-D unsteady flow hydrodynamic numerical model is developed for the river network region of the Pearl River Delta, and the model is calibrated with the measured data.
提出船闸引航道内水面波动的二维数学模型，采用二维非恒定流数学模型和船闸灌泄水一维数学模型联解。
A 2-d numerical model of wave motion in lock approach channel is described, which is soluted by using the method of resultants of 2-d numerical model of unsteady flow and 1-d numerical model.
提出船闸引航道内水面波动的二维数学模型，采用二维非恒定流数学模型和船闸灌泄水一维数学模型联解。
A 2-d numerical model of wave motion in lock approach channel is described, which is soluted by using the method of resultants of 2-d numerical model of unsteady flow and 1-d numerical model.
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