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요약정보
入口不同速度夹角对尾水管内湍动能的影响分析 / Influence Analysis of Inlet Velocity Angle on Turbulent Energy in Draft Tube
Resource Type
Academic Journal
Authors
李春乾
;
浦锋
;
杨杰
;
吴才冉
;
韩雪丽
;
冯赵展
;
杨怀荣
;
于凤荣
;
LI Chun-qian
;
PU Feng
;
YANG Jie
;
WU Cai-ran
;
HAN Xue-li
;
FENG Zhao-zhan
;
YANG Huai-rong
;
YU Feng-rong
Source
云南水力发电 / Yunnan Water Power
. 38(6):41-46
Subject
弯肘形尾水管
湍流动能
Fluent
CFD
数值模拟
Language
Chinese
ISSN
1006-3951
Online Access
Find it @ DONGA
초록
以某水电站弯肘形尾水管为研究对象,应用ANSYS软件建立从尾水管进口到尾水管出口过流部件的流道模型,划分网格后导入Fluent进行模拟计算.分析结果表明,在入口速度垂直进入时,尾水管内部的湍流动能变化不大,流动较为平缓,湍流发展较充分.随着速度入口夹角的增大,弯肘段入口及水平扩散段入口的湍流动能越来越大,即说明随速度入口夹角的增大,尾水管在弯肘段及水平扩散段的流动越紊乱,对机组稳定不利.该方法可预估弯肘形尾水管内部的流动性能和湍流发展程度.
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