基于流固耦合的闸下淹没出流流场瞬态分析  

Transient Analysis of Coupled Flow Field in Submerged Gate

作　　者：赵勇 郑圣义[2] 蔡卫江 荣红 许栋 ZHAO Yong;ZHENG Shengyi;CAI Weijiang;RONG Hong;XU Dong(NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106, Jiangsu, China;College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, Jiangsu, China)

机构地区：[1]南瑞集团(国网电力科学研究院)有限公司,江苏南京211106 [2]河海大学能源与电气学院,江苏南京211100

出　　处：《水力发电》2019年第5期86-90,117,共6页Water Power

摘　　要：弧形钢闸门开启泄流过程中时常存在严重的振动问题,为掌握此过程中水流诱发的振动机理、从而避免闸门的剧烈振动,结合实际工程中某胸墙式弧形钢闸门,考虑上下游水位工况,应用ANSYS FLORTRAN多耦合分析平台,为实现上下游两侧水体与弧门面板两侧的耦合设置,首次采用SOLID187实体单元模拟面板,建立多种开度下的水体—弧门耦合模型。对该模型进行瞬态求解,研究了闸下淹没出流、考虑水体—弧门耦合作用时,弧形闸门的不同开度对流场的瞬态流速、近壁水体动压力的变化规律,得出相应结论。There is a serious vibration problem in the opening process of curved steel gate for water discharge. In order to understand the vibration mechanism induced by water flow and avoid gate vibration, the ANSYS FLORTRAN multi-coupling analysis platform is adopted to establish water-gate coupling model for a breast-wall steel radial gate under different gate openings, in which, the upstream and downstream water level conditions are considered, and in order to realize the coupling between upstream and downstream water bodies and gate panel, the SOLID187 solid element is firstly used to simulate panel. The transient solution of model is studied. The variations of the transient velocity of flow field and the dynamic pressure of near-wall water under submerged outflow and different gate openings are studied, and corresponding conclusions are obtained.

关 键 词：淹没出流 弧形闸门 流固耦合 流场瞬态分析 

分 类 号：TV663[水利工程—水利水电工程]