[1]韩怀志,于瑞天,廖文君.非对称型波纹通道流动与传热性能的数值模拟[J].哈尔滨工程大学学报,2020,41(7):998-1004.[doi:10.11990/jheu.201811033]
 HAN Huaizhi,YU Ruitian,LIAO Wenjun.Numerical simulation study on the flow and heat transfer characteristics of asymmetrical corrugated channels[J].hebgcdxxb,2020,41(7):998-1004.[doi:10.11990/jheu.201811033]
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非对称型波纹通道流动与传热性能的数值模拟(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
41
期数:
2020年7期
页码:
998-1004
栏目:
出版日期:
2020-07-05

文章信息/Info

Title:
Numerical simulation study on the flow and heat transfer characteristics of asymmetrical corrugated channels
作者:
韩怀志1 于瑞天1 廖文君2
1. 四川大学 化学工程学院, 四川 成都 610065;
2. 哈尔滨工程大学 动力与能源工程学院, 黑龙江 哈尔滨 150001
Author(s):
HAN Huaizhi1 YU Ruitian1 LIAO Wenjun2
1. School of Chemical Engineering, Sichuan University, Chengdu 610065, China;
2. College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
波纹通道板式换热器强化换热传热机理数值模拟非对称湍流流动流动特性
分类号:
TK124
DOI:
10.11990/jheu.201811033
文献标志码:
A
摘要:
为了探究波纹通道倒角连接处对流动和传热性能的影响,本文针对非对称波纹通道中大波谷半径(rl)位于来流侧和去流侧进行了数值模拟研究。比较了不同雷诺数下对称型与非对称型波纹通道壁表面平均及局部表面特征数的变化规律。结果表明:壁表面平均努塞尔数(Nu)与局部努塞尔数(Nux)皆随雷诺数(Re)的增大而增大,且对称型波纹通道壁面Nu的增长速率大于非对称型波纹通道;壁表面平均摩擦系数(f)与局部摩擦系数(fx)皆随Re的增大而减小,且非对称型波纹通道f下降速度相比对称型小。非对称型通道的Nu略小于对称型通道,但f却大幅度降低。2种非对称型比较时,大波谷半径位于来流侧时流速较小且涡旋范围较小,温度边界层略厚,压力梯度的转换较小,湍动能整体较小。鉴于上述研究,在换热器设计上建议选择rl位于去流侧通道以提高整体性能系数。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-11-12。
基金项目:国家自然科学基金项目(51506034).
作者简介:韩怀志,男,副教授.
通讯作者:韩怀志,E-mail:hanhz@scu.edu.cn.
更新日期/Last Update: 2020-08-15