Flow and heat transfer mechanism of corrugated plate heat exchanger

WANG Qian; HAN Huaizhi; LI Bingxi

doi:10.11949/j.issn.0438-1157.20170673

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Flow and heat transfer mechanism of corrugated plate heat exchanger

更新时间：2025-12-10

- Flow and heat transfer mechanism of corrugated plate heat exchanger
- CIESC Journal Issue S1, Pages: 71-82(2017)
- 作者机构：
  
  1. 哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001
  2. 哈尔滨工程大学动力与能源工程学院,黑龙江,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170673
  CLC： K124
- Online First：31 August 2017，
  
  Published：31 August 2017
- 稿件说明：
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WANG Qian, HAN Huaizhi, LI Bingxi. Flow and heat transfer mechanism of corrugated plate heat exchanger[J]. CIESC Journal, 2017, (S1): 71-82.
DOI：

WANG Qian, HAN Huaizhi, LI Bingxi. Flow and heat transfer mechanism of corrugated plate heat exchanger[J]. CIESC Journal, 2017, (S1): 71-82. DOI： 10.11949/j.issn.0438-1157.20170673.

摘要

采用Realizable k-ε湍流模型，针对一种人字形板间波纹通道的流动与传热机理进行了数值模拟研究。考察了不同Reynolds数湍流状态下波纹通道中沿壁面的平均以及局部表面特征数（Nu和f）的变化规律，揭示了流动与传热参数在波纹通道不同横向剖面的分布规律。结果表明在Re<7860时，凹壁面Nu更大；Re>7860时，凸壁面Nu更大；随着Re的增大凹壁面f大于凸壁面。凹壁面的Nu在近入口和近出口处存在两个峰值，并且在近出口处存在极大值；而凸壁面在近入口处存在一个极大值，在近出口处存在极小值。凹壁面的f在近出口处出现陡升现象，而凸壁面则在近入口处出现陡升。随着Re增大，剖线v和TKE增大，而T减小。另外，v、T和TKE在近凹壁面区域皆突然增大。

Abstract

In this paper

the Realizable k-ε turbulence model is used to simulate the flow and heat transfer mechanism of a corrugated channel. Considering various Re in turbulence regions

the variation of the averaged characteristic number on wall surface (Nu and f) and the local characteristic number along the wall surfaces of the corrugated channel are investigated. The distribution of internal flow and heat transfer parameters in different transverse sections is analyzed. The results show that when Re<7860

Nu of concave wall is larger; when Re>7860

Nu of convex wall is larger; while f on the convex wall is always larger than that on the concave wall. Nu reached two peak values near entrance and exit of the convex wall

moreover

the maximum value in located near the exit. However

a maximum Nu is located near the entrance and a minimum is located near the exit for the concave wall. As for f

steep rising occurs near the exit of the convex wall

while steep rising appears near the entrance of the concave wall. With the increase of Re

v and TKE at all profiles also increase

while T decrease. In addition

T and TKE all suddenly increase near the region of convex wall.

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