摘要
文章以某大型水库岸边溢洪道进水口为研究对象,针对物理模型试验中溢洪道进水口处左岸回流、右岸出现漩涡的问题,应用Realizable k-ε湍流模型、VOF法模型追踪自由表面和非结构网格区域离散进行处理,对水库溢洪道进水口进行三维数值模拟计算,并结合1:80的物理模型试验成果对比分析,结果表明VOF模型能较好的反映出溢洪道进水口的压力场分布,与模型试验的结果吻合较好。其数值计算结果可以为岸边溢洪道进水口压强分布规律提供较为可靠的依据,研究成果也为其他类似的水工建筑物的进水口问题提供了参考。
This article studies on the pressure properties of the diversion wall at the inlet of the spillway on the banks of a large reservoir. A three-dimensional numerical model is developed to analyze the occurrences of a left-bank backflow and a right-bank vortex observed by a physical model. The Realizable κ-ε turbulence model and the VOF model are used respectively to simulate the trajectory of the free surface and to diseretize the unstructured grids. The results are compared with that of the physical model test on the scale of 1：80. It is revealed that the VOF model can reasonably represent the pressure distribution at the inlet of the spillway, and the modelling results coincide with the physical model test. The numerical simulation results in this study provide a useful reference for similar studies on the pressure distribution at the inlet of a spillway as well as the inlets of other hydraulic structures.
出处
《山东农业工程学院学报》
2017年第9期39-43,共5页
The Journal of Shandong Agriculture and Engineering University
