中文摘要：

采用RNG k-ε紊流模型、有限体积法和结构化网格,对不同设计参数下的泵站虹吸式出水管进行了数值模拟,量化分析了主要设计参数对虹吸形成时间与水力损失的影响。结果表明：上升角宜取30°-45°;驼峰断面高宽比宜取0.6-1.0;曲率半径宜取0.8D-1.4D;下降段下降角宜取60°-82°。

英文摘要：

The RNG k- ε turbulent model,finite volume method,and structured grids were adopted to numerically simulate the interior three- dimensional flow of siphonic outlet pipe with different design parameters in pumping station. On the basis of numerical simulation results,the effects of main design parameters of siphonic outlet pipe on the siphon forming time and hydraulic loss were quantitatively analyzed. The results indicated that： the climbing angle should be 30° - 45°; the height- width ratio of hump section should be 0. 6 - 1. 0; the curvature radius should be 0. 8D - 1. 4D; the descending angle of descending branch should be60° - 82°.