基于CFX的双向流道自引自排闸门开度控制研究

发布时间：2018-05-28 00:45

本文选题：泵站 + 双向流道　；参考：《中国农村水利水电》2017年07期

【摘要】：双向流道泵站具有提灌提排和自引自排功能,在我国沿江区域的应用较为广泛。但有关该形式泵站自引(自排)特性研究较少,自排自引时闸门开度优化控制和合理开启方式是亟待解决的问题。基于标准的K-ε湍流模型方程、时均N-S方程和连续性方程,数值模拟了双向流道自引(自排)工况下4种不同闸门开启方案、23种不同闸门开度组合下的过流特性,以流道内流场速度分布均匀性为标准,比较了在同一水位差下引(排)相同流量不同闸门开启方案的合理性。结果表明,自引(自排)时进水侧闸门全开方案最优。研究提出了不同上下游水位差下引(排)所需流量时的最佳闸门开度确定方法。研究成果对于双向流道泵站的自引(自排)优化运行具有重要现实意义。
[Abstract]:Two-way flow channel pumping station has the functions of lifting, irrigation and drainage and self-citation and self-drainage, and is widely used in the region along the Yangtze River in China. However, there are few studies on the self-citation (self-discharge) characteristics of the pump station, and the optimization control of gate opening and the reasonable opening mode are urgent problems to be solved. Based on the standard K- 蔚 turbulence model equation, time-averaged N-S equation and continuity equation, the overflow characteristics of 23 different gate opening schemes with 23 different gate opening schemes are numerically simulated under bidirectional flow channel self-citation (self-discharge) conditions. Based on the uniformity of velocity distribution in the flow channel, the rationality of different gate opening schemes with the same water level difference and the same discharge is compared. The results show that the full opening scheme of inlet side gate is optimal when self-citation (self-discharge). A method for determining the optimal gate opening under different upstream and downstream water level difference is proposed. The research results have important practical significance for self-citation (self-discharge) operation of bidirectional runner pumping station.
【作者单位】：扬州大学水利与能源动力工程学院;镇江市谏壁抽水站管理处;
【分类号】：TV675

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