【摘要】 现采用两方程κ-ε紊流模型和VOF多相流方法对惠南庄前池泵站进行了三维数值模拟,并对加大流量情况下高、低水位两种工况前池流态特征进行了分析比较。结果表明,该前池设计方案基本合理,运行中没有出现明显的不利流态,但不同运行水位下拦沙坎对其附近及下游流态的影响存在一定差别。更多还原

【Abstract】 κ-ε two equation turbulence model and VOF method are adopted to simulate 3-D turbulent flow in the forebay of Huinanzhuang pumping station in the paper. The flow patterns of the two operation cases for different water level of the forebay are analysed. The results show that the designing layout of the forebay is suitable and no unsatisfactory flow patterns appear during the running period of the pumping station. Under different run level, the influence of the silting sill on downstream area is different to some degree.更多还原