设置消减压力脉动稳流片后尾水管数值解析  

Numerical research on fins to alleviate draft tube surging

作　　者：马震岳[1] 陈婧[1] 西道弘[2] 

机构地区：[1]大连理工大学土木工程系,辽宁大连116024 [2]九州工业大学机械工程系

出　　处：《大连理工大学学报》2003年第2期181-186,共6页Journal of Dalian University of Technology

基　　金：教育部留学回国人员科研启动基金资助项目.

摘　　要：利用三维粘性流动的数值解析方法,探讨了装置稳流片后尾水管的内部流动.以弯肘型直锥段作为模型,研究了稳流片消减涡动强度的效果.计算得到作用在稳流片上的集中荷载,通过对比分析发现:考虑强度时三角翼型稳流片最优;而对于传统的稳流片,选择C型更有利.The paper presents the numerical results of the draft tube with the fin installations through threedimensional turbulence viscous flow analysis. Only the inlet conical part of an elbow draft tube is taken to study the fin effect to alleviate the surging. The resultant hydraulic dynamic forces acting on the fins are computed and the comparison between different types of fins is made for the optimization of fins design. The conclusion is as follows: from the viewpoint of strength the delta type fins are the best; as for the traditional types of fins, the C type fins may be a best selection.

关 键 词：数值解析 尾水管 压力脉动 稳流片 减振器 混流式水轮机 减振装置 

分 类 号：TK733.1[交通运输工程—轮机工程] TK730.314[动力工程及工程热物理—流体机械及工程]