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首页> 外文会议>International Conference on Modern Hydraulic Engineering >Study on the Accuracy of Numerical Simulation of Slope Approximation Method in Open-Channel with Vertical Wall
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Study on the Accuracy of Numerical Simulation of Slope Approximation Method in Open-Channel with Vertical Wall

机译：垂直墙体坡近似法数值模拟准确性研究

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摘要

Slope approximation method is generally used in numerical simulation of SKM that contains channel cases with vertical wall. However, systemic study on the influences to the precision of SKM method by slope approximation can be hardly found. In order to tackle the issue, sensitivity analysis by using slope approximation method with different approximated angles has been conducted. The result showed that impact on the velocity distribution by the approximated angle is local, but disparity of the velocity distribution in main channel is obvious. It comes to the conclusion that slopping approximation algorithm neither solves the discontinuity at interface with vertical wall nor obtains accurate depth-averaged velocity and shear stress distribution in lateral direction.
机译：斜率近似方法通常用于SKM的数值模拟，其中包含垂直墙的通道箱。然而，可以几乎不发现对对SKM方法精度的影响的系统性研究。为了解决问题，已经进行了使用具有不同近似角度的斜率近似方法的灵敏度分析。结果表明，通过近似角度对速度分布的影响是局部的，但主频道中的速度分布的差异是显而易见的。得出结论，倾斜近似算法既不解决与垂直墙接口的不连续性，也不能够在横向方向上获得精确的深度平均速度和剪切应力分布。

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