基于非正交曲线坐标下水流与污染物扩散输移的深度平均数学模型，采用k-ε双方程湍流模型和速度—水深耦合算法，应用于实验室连续弯道的水流及污染物扩散输移的数值模拟，分别计算了流场及岸边和中心污染物排放的浓度场，得到与实测值吻合良好的计算值。

Based on depth-averaged mathematic model of flow and pollutant transportation in non-orthogonal curvilinear coordinates, the k-ε double equations´ turbulence model and the coupling arithmetic of velocity-water depth are adopted, which are applied to the numerical simulation of the flow and the contamination diffusion-transportation. The flow field and concentration of discharge both along bank and in the centerline of the meandering channel in laboratory are calculated, and the calculating results accord well with the measured data.