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大型泵站虹吸式出水流道水力特性分析
引用本文:朱红耕.大型泵站虹吸式出水流道水力特性分析[J].中国给水排水,2006,22(6):54-57.
作者姓名:朱红耕
作者单位:扬州大学,水利科学与工程学院,江苏,扬州,225009
基金项目:国家技术装备研制项目;水利部科技创新项目;江苏省重点实验室基金;江苏省教育厅指导性项目
摘    要:采用计算流体力学方法对大型泵站虹吸式出水流道的内部流场进行了数值模拟。在分析了影响虹吸式出水流道水力特性的主要设计参数、数值模拟流道内部的三维流动和定性分析流道内部流态的基础上,建立了虹吸式出水流道水力特性评价指标体系。通过分析两个设计方案的虹吸式出水流道的流场,定量比较了驼峰和出口断面的流速分布均匀度和流道水力损失,客观评价了虹吸式出水流道的水力特性,为实现水力设计优化提供了可靠依据,可有效地节省物理模型试验费用和时间,提高水泵装置的效率。

关 键 词:虹吸式出水流道  水力特性  数值模拟  大型泵站
文章编号:1000-4602(2006)06-0054-04
收稿时间:2005-09-04
修稿时间:2005-09-04

Analysis on Hydraulic Performance of Siphonic Discharge Passage of Large Scale Pump Station
ZHU Hong-geng.Analysis on Hydraulic Performance of Siphonic Discharge Passage of Large Scale Pump Station[J].China Water & Wastewater,2006,22(6):54-57.
Authors:ZHU Hong-geng
Abstract:Calculation of fluid mechanics was adopted for numeric simulation to the flow field inside the siphonic discharge passage of large scale pump station. Based on the analysis for the design parameters affecting the hydraulic performance of siphonic discharge passage, the numerical simulation to the three dimensional flowing in the passage, and the qualitative analysis for the flow pattern inside the passage, the evaluation index system for the hydraulic performance of siphonic discharge passage was established. By making analysis on the flow field of the siphonic discharge passage in two design schemes, the quantitative comparison was made on the distribution of flow velocity between hump and outlet section and on the passage hydraulic loss , and the objective evaluation was conducted on the hydraulic performance of the discharge passage, and thus providing the reliable basis for the optimization of hydraulic design. It can effectively save the test cost and time of physical model, and raise the efficiency of pump installation.
Keywords:siphonic discharge passage  hydraulic performance  numerical simulation  large scale pump station
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