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通过数值模拟复杂几何区域和边界条件下二、三维嵌套紊流模型，获得了计算区域内任意一点的流场信息。这一方法克服了常规的单纯模拟二维或三维紊流控制方程组而无法获得准确的自由表面和三维紊流场的缺点，通过两者有机的结合，并采用动边界处理等先进的计算技术，得出了精度更高、更为合理的紊流场。该方法曾被用于三峡工程大江截流完成之后导流明渠通航的流场模拟中，计算结果合理可信，部分成果的精度也已得到了实测资料的验证，成果为导流明渠通航路线的选择提供了依据
By numerical simulation of two-dimensional and three-dimensional nested turbulence model under complex geometric and boundary conditions, the flow field information at any point in the calculation area is obtained. This method overcomes the shortcomings of the traditional simple two-dimensional or three-dimensional turbulent control equations and can not obtain accurate free surface and three-dimensional turbulent flow field. Through the combination of the two, and using the advanced computational techniques such as dynamic boundary treatment , Got higher accuracy and more reasonable turbulent flow field. This method has been used to simulate the flow field of the diversion channel after the completion of the Three Gorges Project. The calculation results are reasonable and credible. The accuracy of some of the results has been verified by the measured data. The result is the choice of the navigable route of the diversion channel Provided the basis