受限式阵列射流冲击传热的试验和数值研究

李勇; 张劲; 张迎春; 张嘉杰; 马素霞; 谢公南

doi:10.21656/1000-0887.460047

受限式阵列射流冲击传热的试验和数值研究

doi: 10.21656/1000-0887.460047

李勇^1,2, ,,
张劲¹,
张迎春³,
张嘉杰^1,2,
马素霞¹,
谢公南⁴

1. 太原理工大学电气与动力工程学院，太原 030024;
2. 煤电清洁智能控制教育部重点实验室，太原 030024;
3. 中北大学能源与动力工程学院，太原 030051;
4. 西北工业大学航海学院，西安 710129

基金项目:

山西省基础研究计划青年基金（202203021212263）；山西省回国留学人员科研资助项目（2023-055；2023-143）；教育部“春晖计划”合作科研项目（202200075）

详细信息

作者简介:
李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn);张劲（2000—），男，硕士生(E-mail: 2023520639@link.tyut.edu.cn).

通讯作者:
李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn)

中图分类号: O35
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出版历程
- 收稿日期: 2025-03-11
- 修回日期: 2025-04-10
- 网络出版日期: 2025-11-13

Experimental and Numerical Study of Impingement Heat Transfer in Confined Array Jets

1. College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, P.R.China;
2. Key Laboratory of Cleaner Intelligent Control on Coal & Electricity, Ministry of Education, Taiyuan 030024, P.R.China;
3. School of Energy and Power Engineering, North University of China, Taiyuan 030051, P.R.China;
4. School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710129, P.R.China

摘要

摘要: 阵列射流是提高微型通道或狭小空间内传热性能的有效方法.借助试验研究和数值仿真方法，从靶面温度分布、流场信息和全局Nusselt数等角度，探究了射流高度/射流间距（Z/d_j=0.60~1.67）这一无量纲参数对多股射流冲击流动传热的影响规律.结果表明：当射流孔数目为奇数时，流体之间的相互作用力越发平衡；当总流量不变时，射流孔数目越少，冷却效果越好；当射流间距较小时，射流会出现明显偏移.随着射流间距的增大，流动结构的对称性逐渐恢复，射流之间的相互作用减弱，受热面温度分布和流体速度分布更加均匀.多股射流的流动传热性能受Z和d_j的共同影响，Z/d_j对2个和3个射流孔下Nusselt数分布影响差异性较小，其中Z/d_j值分别为1.67和1.25时Nusselt数达到峰值.该文的研究结论有助于优化多股射流结构，进一步提升多股射流的换热性能.
- 狭小空间 /
- 射流冲击 /
- 强化传热 /
- 射流高度/射流间距 /
- Nusselt数
Abstract: Array jet impingement is an effective method to enhance heat transfer performance in microchannels or confined spaces. The effects of dimensionless parameters of jet height/jet distance (Z/d_j=0.60~1.67) on the heat transfer of multi-jet impinging flow were investigated from the perspectives of the target surface temperature distribution, the flow field information and the global Nusselt number by experiment and numerical simulation. The results show that, the interaction force between the fluids becomes more balanced with an odd number of jet holes. At a constant total flow rate, fewer jet holes lead to better cooling performance. The jet has obvious deviation with relatively smaller jet spacings. The symmetry of the flow structure will gradually recover with the increase of the jet spacing, the interaction between jets will weaken, and the temperature distribution on the heating surface and the fluid velocity distribution will become more uniform. The flow and heat transfer performances of multiple jets are jointly affected by Z and d_j,and Z/d_j has little difference in Nusselt number distributions for 2 and 3 jet holes, where the Nusselt number reaches its peak for Z/d_j=1.67 and 1.25, respectively. The findings contribute to optimizing multiple jets’configurations and further enhancing their heat transfer performances.
- narrow space /
- jet impingement /
- heat transfer enhancement /
- jet height/jet distance /
- Nusselt number

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参考文献(17)

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受限式阵列射流冲击传热的试验和数值研究

doi: 10.21656/1000-0887.460047

作者简介:
李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn);张劲（2000—），男，硕士生(E-mail: 2023520639@link.tyut.edu.cn).

通讯作者:
李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn)

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Experimental and Numerical Study of Impingement Heat Transfer in Confined Array Jets

计量

目录

留言板

受限式阵列射流冲击传热的试验和数值研究

doi: 10.21656/1000-0887.460047

作者简介: 李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn);张劲（2000—），男，硕士生(E-mail: 2023520639@link.tyut.edu.cn).

通讯作者: 李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn)

计量

出版历程

Experimental and Numerical Study of Impingement Heat Transfer in Confined Array Jets

计量

出版历程

目录

作者简介:
李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn);张劲（2000—），男，硕士生(E-mail: 2023520639@link.tyut.edu.cn).

通讯作者:
李勇（1987—），男，讲师，硕士生导师(通讯作者. E-mail: yongli@tyut.edu.cn)