基于正交试验多目标的冲击式水轮机喷射机构参数优化  

Optimization of impact turbine jet mechanism parameters based on orthogonal test and multiple targets

作　　者：黄金伟 葛新峰[2] 孟涵 姚辉勇 李典基 HUANG Jinwei;GE Xinfeng;MENG Han;YAO Huiyong;LI Dianji(China South-to-North Water Diversion Group East Route Co.,Ltd.,Beijing 10oo00,China;Hohai University,Nanjing 210098,China;PowerChina Chengdu Engineering Corporation Limited,Chengdu 611130,China;Shandong Main Line Co.,Ltd.,Eastern Route of South-to-North Water Diversion Project,Jinan 250000,China)

机构地区：[1]中国南水北调集团东线有限公司,北京100000 [2]河海大学,南京210098 [3]中国电建集团成都勘测设计研究院有限公司,成都611130 [4]南水北调东线山东干线有限责任公司,济南250000

出　　处：《南水北调与水利科技(中英文)》2024年第S2期64-71,共8页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金面上项目(52279083)。

摘　　要：通过UG对冲击式水轮机喷射机构进行建模,基于Fluent对冲击式水轮机喷射机构进行三维数模计算并分析,采用多目标正交试验法对冲击式水轮机喷射机构进行优化,以喷针角度、喷嘴角度及喷管角度3个设计参数作为影响水轮机喷射机构的因素构建正交试验表,探究对冲击式水轮机喷射机构效率、气含率峰值、含气量面积值以及端动能这4个评判指标的影响,通过直观分析和极差分析结合的方法确定喷针(60°)喷嘴(80°)喷管(55°)的最优组合方案,同时采用综合频率法进行验证。结果表明:优化组合方案的效率提高了11.6%、端动能降低了24.7%、气含率峰值降低了32.5%、含气量面积值提高了40.7%。In this paper,UG uses the injection mechanism to calculate and analyze the injection mechanism of the impact turbine based on Fluent.Then the multi-objective orthogonal test method is used to optimize the jet mechanism of the impact turbine.Orthogonal test table is constructed with three design parameters of needle angle,nozzle angle and spray nozzle angle as factors influencing the turbine injection mechanism.Explore the influence of the four evaluation indexes of the jet mechanism efficiency,peak gas content,gas content area value and turbulent kinetic energy of the impact turbine.The optimal combination of a needle(60°)nozzle(80°)nozzle(55°).It also got a comprehensive frequency method for verification.The efficiency of the optimized combination scheme by 11.6%.The turbulent kinetic energy was reduced by 24.7%,Peak gas content was reduced by 32.5%,The gas content area value increased by 40.7%.

关 键 词：冲击式水轮机 喷射机构 数模计算 正交试验法 

分 类 号：TV7[水利工程—水利水电工程]