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陈彦松(), 阮达, 刘渊博, 郑通, 张帅帅, 马学虎()
收稿日期:
2023-12-01
修回日期:
2024-01-18
出版日期:
2024-03-08
通讯作者:
马学虎
作者简介:
陈彦松(1992—),男,博士研究生,18842686719@163.com
基金资助:
Yansong CHEN(), Da RUAN, Yuanbo LIU, Tong ZHENG, Shuaishuai ZHANG, Xuehu MA()
Received:
2023-12-01
Revised:
2024-01-18
Online:
2024-03-08
Contact:
Xuehu MA
摘要:
换热器结构拓扑优化可将传热强化设计问题转化为数学优化问题进行求解,对于设计新颖高效换热器具有重要价值。然而,拓扑优化数学模型难以直接解释优化结果的几何特征及相应强化机理。以传热量为目标,对微通道换热器进行拓扑优化设计,研究了不同参数对换热器强化结构特征和换热器性能的影响。结果表明,拓扑优化换热器的通道结构呈现多级分叉构型,分叉的数量随着入口
中图分类号:
陈彦松, 阮达, 刘渊博, 郑通, 张帅帅, 马学虎. 微通道换热器拓扑结构优化与性能研究[J]. 化工学报, DOI: 10.11949/0438-1157.20231236.
Yansong CHEN, Da RUAN, Yuanbo LIU, Tong ZHENG, Shuaishuai ZHANG, Xuehu MA. Topology optimization and performance research of microchannel heat exchangers[J]. CIESC Journal, DOI: 10.11949/0438-1157.20231236.
图1 微通道换热器模型示意图:(a) 电子元件冷板对流换热器换热;(b) 简化的二维模型
Fig.1 Heat exchanger model diagram (a) Electronic components cold plate convection heat exchanger heat exchange; (b) Simplified 2D model
编号 | ||
---|---|---|
案例组I(1~10) | 1~10 | |
案例组II(1~10) | 1~10 | |
案例组III(1~10) | 1~10 | |
案例组IV(1~10) | 1~10 |
表1 各案例参数一览表
Table 1 List of parameters for different cases
编号 | ||
---|---|---|
案例组I(1~10) | 1~10 | |
案例组II(1~10) | 1~10 | |
案例组III(1~10) | 1~10 | |
案例组IV(1~10) | 1~10 |
物质名称 | 动力黏度 | 密度 | 热导率 | 等压热熔 | 初始 | 入口压力Pa | |
---|---|---|---|---|---|---|---|
液态金属 | 0.0024 | 6440 | 16.5 | 200 | 0.029 | 996.9 | 9.085 |
水 | 0.0010 | 998 | 0.600 | 4180 | 6.99 | 1000.0 | 10.24 |
FC40 (3M) | 0.0041 | 1855 | 0.065 | 1100 | 69.4 | 997.8 | 92.05 |
乙二醇 | 0.0214 | 1116.5 | 0.2495 | 2383 | 204.6 | 995.8 | 4172 |
表2 不同流体介质的物性参数及边界条件
Table 2 Physical parameters and boundary conditions for different fluid media
物质名称 | 动力黏度 | 密度 | 热导率 | 等压热熔 | 初始 | 入口压力Pa | |
---|---|---|---|---|---|---|---|
液态金属 | 0.0024 | 6440 | 16.5 | 200 | 0.029 | 996.9 | 9.085 |
水 | 0.0010 | 998 | 0.600 | 4180 | 6.99 | 1000.0 | 10.24 |
FC40 (3M) | 0.0041 | 1855 | 0.065 | 1100 | 69.4 | 997.8 | 92.05 |
乙二醇 | 0.0214 | 1116.5 | 0.2495 | 2383 | 204.6 | 995.8 | 4172 |
6.11 | 24.19 | 3.08 | 1.51 | 1.08 | |
5.56 | 23.58 | 2.76 | 1.31 | 0.93 | |
5.20 | 23.10 | 2.58 | 1.20 | 0.85 | |
0 | 4.91 | 22.66 | 2.45 | 1.13 | 0.78 |
20 | 4.46 | 21.88 | 2.26 | 1.03 | 0.72 |
40 | 4.09 | 21.12 | 2.12 | 0.95 | 0.66 |
60 | 3.78 | 20.38 | 1.99 | 0.89 | 0.62 |
80 | 3.50 | 19.63 | 1.88 | 0.84 | 0.58 |
90 | 3.37 | 19.25 | 1.83 | 0.81 | 0.56 |
100 | 3.25 | 18.87 | 1.78 | 0.78 | 0.54 |
120 | 3.01 | 18.10 | 1.68 | 0.73 | 0.51 |
140 | 2.79 | 17.30 | 1.59 | 0.69 | 0.48 |
表3 不同楔形结构开角条件下流动和传热边界层达到充分发展时对应的η临界值
Table 3 The η Critical Values of Flow and Heat Transfer Boundary Layer at Fully Developed Conditions for Different Wedge Angles
6.11 | 24.19 | 3.08 | 1.51 | 1.08 | |
5.56 | 23.58 | 2.76 | 1.31 | 0.93 | |
5.20 | 23.10 | 2.58 | 1.20 | 0.85 | |
0 | 4.91 | 22.66 | 2.45 | 1.13 | 0.78 |
20 | 4.46 | 21.88 | 2.26 | 1.03 | 0.72 |
40 | 4.09 | 21.12 | 2.12 | 0.95 | 0.66 |
60 | 3.78 | 20.38 | 1.99 | 0.89 | 0.62 |
80 | 3.50 | 19.63 | 1.88 | 0.84 | 0.58 |
90 | 3.37 | 19.25 | 1.83 | 0.81 | 0.56 |
100 | 3.25 | 18.87 | 1.78 | 0.78 | 0.54 |
120 | 3.01 | 18.10 | 1.68 | 0.73 | 0.51 |
140 | 2.79 | 17.30 | 1.59 | 0.69 | 0.48 |
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