流体机械2016，Vol.44Issue(3)：1-5,5.DOI:10.3969/j.issn.1005-0329.2016.03.001
立式轴流泵装置流道内部流动特性及消涡试验
Analysis on the Vortex Flows and Vortex Suppression Schemes of Cube-type Inlet Passage for Pumping System
摘要
Abstract
In order to analyze the hydraulic characteristics of the cube-type inlet passage,numerical simulation and high-speed photography had been done.Submerged vortex occurs under the flare tube.Submerged vortex trajectory of an inlet passage was captured successfully based on a numerical simulation,which is the same as the observed results by high-speed photography.The numerical simulation prediction results are effective.Compared with the cube-type inlet passage without vortex-elimination device, the axial velocity distribution uniformity at the exit section of suction passage was improved by 0.423% averagely,and the veloci-ty-weighted average swirl increased by 0.397°averagely in different operating conditions.New vortex-elimination devices with zig-zag bar were designed,which can eliminate submerged vortex in different operating conditions.This research has an important en-gineering value for stable operation of pump stations with the cube-type inlet passage.关键词
泵装置/进水流道/附底涡/数值模拟/高速摄影Key words
pumping system/inlet passage/submerged vortex/numerical simulation/high-speed photography分类
机械制造引用本文复制引用
赵浩儒,杨帆,刘超,徐磊,许旭东..立式轴流泵装置流道内部流动特性及消涡试验[J].流体机械,2016,44(3):1-5,5.基金项目
国家自然科学基金项目（51279173，51206139）；江苏省自然科学基金项目（BK20150457）；江苏省高校自然科学研究项目（14KJB 570003）；扬州大学科技创新培育基金项目 （）
