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Z坐标系下分层三维水流数学模型研究

邵军荣,吴时强,吴修锋,何建兵,周杰

Shuidonglixue Yanjiu yu Jinzhan/Chinese Journal of Hydrodynamics Ser. A（2012）

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Abstract
建立了z坐标系下分层三维水流数学模型,避开了在地形突变σ变换下水平压力梯度计算较大的困难.在任意三角形网格中,通过剖开算子法,将方程剖分为不同子算子,用各自适应的数值解法进行求解.潜坝及斜槽水流的计算结果与实验结果吻合较好,而基于σ变换的Delft3D模型计算值与试验值相差较大,因此本文的z坐标分层数学模型可以用来计算包括地形突变的三维水流,并具有较高的精度.
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Key words
Layer-integrated 3D model,Operator-splitting algorithm,Shallow dam,Skewed slot,z coordinates
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