箱涵式双层流道后壁结构优化分析

TV131; 为优化箱涵式双层流道后壁结构,基于CFX软件,采用RNG k-?紊流模型,对方形、圆形、ω形后壁进行了数值模拟,分析了不同组合方式对箱涵式进出水流道内流态的影响.数值结果表明:方形后壁的进水流道流态较好,但是出水流道的流态比较紊乱,出水流道段断面流速均匀度较差,加权平均角较低,进水流道后壁形状为ω形,出水流道后壁形状为圆形时,进出水流道的流态得到了明显的改善,出水断面流速均匀度提高35.4％,加权平均角提高10.2°,优化效果比较突出,若考虑施工问题,也可只改变出水流道后壁形状....

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Published in中国农村水利水电 no. 6; pp. 102 - 113
Main Authors 赵振江, 石磊, 蒋红樱, 成立, 张聪聪, 卜舸
Format Journal Article
LanguageChinese
Published 泗洪县水利局,江苏宿迁223900%江苏省水利工程科技咨询股份有限公司,南京210029%扬州大学水利科学与工程学院,江苏扬州225009%江苏省水利勘测设计研究院有限公司,江苏扬州225009 15.06.2021
Subjects
后壁
数值模拟
箱涵式
双层流道
优化
Online AccessGet full text
ISSN1007-2284
DOI10.3969/j.issn.1007-2284.2021.06.018

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Abstract TV131; 为优化箱涵式双层流道后壁结构,基于CFX软件,采用RNG k-?紊流模型,对方形、圆形、ω形后壁进行了数值模拟,分析了不同组合方式对箱涵式进出水流道内流态的影响.数值结果表明:方形后壁的进水流道流态较好,但是出水流道的流态比较紊乱,出水流道段断面流速均匀度较差,加权平均角较低,进水流道后壁形状为ω形,出水流道后壁形状为圆形时,进出水流道的流态得到了明显的改善,出水断面流速均匀度提高35.4％,加权平均角提高10.2°,优化效果比较突出,若考虑施工问题,也可只改变出水流道后壁形状.
AbstractList TV131; 为优化箱涵式双层流道后壁结构,基于CFX软件,采用RNG k-?紊流模型,对方形、圆形、ω形后壁进行了数值模拟,分析了不同组合方式对箱涵式进出水流道内流态的影响.数值结果表明:方形后壁的进水流道流态较好,但是出水流道的流态比较紊乱,出水流道段断面流速均匀度较差,加权平均角较低,进水流道后壁形状为ω形,出水流道后壁形状为圆形时,进出水流道的流态得到了明显的改善,出水断面流速均匀度提高35.4％,加权平均角提高10.2°,优化效果比较突出,若考虑施工问题,也可只改变出水流道后壁形状.
Author 石磊
赵振江
蒋红樱
张聪聪
卜舸
成立
AuthorAffiliation 泗洪县水利局,江苏宿迁223900%江苏省水利工程科技咨询股份有限公司,南京210029%扬州大学水利科学与工程学院,江苏扬州225009%江苏省水利勘测设计研究院有限公司,江苏扬州225009
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JIANG Hong-ying
SHI Lei
BU Ge
ZHAO Zhen-jiang
CHENG Li
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数值模拟
箱涵式
双层流道
优化
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