流体横掠顺排和错排方形微针肋阵列的流动传热和熵产分析

doi:10.3976/j.issn.1002-4026.2015.01.003

山东科学

流体横掠顺排和错排方形微针肋阵列的流动传热和熵产分析

赵红霞，匙明申，管宁

1.山东大学能源与动力工程学院，山东济南 250061； 2.山推建友机械股份有限公司，山东济南 250022； 3.山东省科学院能源研究所，山东济南 250014

收稿日期:2014-12-05 出版日期:2015-02-20 发布日期:2015-02-20
作者简介:赵红霞（1977-），女，博士，副教授，研究方向为微尺度传热、制冷。Email:hongxiazhaojess@gmail.com
基金资助:
国家自然科学基金（51306107）; 山东省自然科学基金（ZR2012EEQ015）;山东科技发展计划(2014GGX104008)

Analysis of flow, heat transfer and entropy generation for flow across inline and staggered square micro pins in a channel

ZHAO Hongxia,CHI Mingshen,GUAN Ning

1.School of Energy and Power Engineering, Shandong University, Jinan 250061,China; 2.Shantui Janeoo Machinery Co. Ltd.,Jinan 250022, China; 3.Energy Institute, Shandong Academy of Sciences, Jinan 250014,China

Received:2014-12-05 Online:2015-02-20 Published:2015-02-20

摘要/Abstract

摘要： 采用数值模拟的方法研究了流体横掠错排和顺排方形微针肋的流动、传热和熵产。结果发现，雷诺数Re≤50时顺排和错排微针肋阵的熵产接近，Re在50~100之间两者流动熵产和传热熵产的差距开始增加，Re≥100之后错排微针肋阵流动熵产远大于顺排微针肋阵，传热熵产小于顺排针肋。传热熵产数值大于流动熵产，总熵产趋势同传热熵产。以Re=100为例，详细分析发现错排针肋阵内速度场较顺排针肋阵均匀，产生的漩涡较小，温度场分布也较顺排针肋阵均匀。局部熵产分析发现错排针肋和顺排针肋传热熵产分布不同，流动熵产分布近似。

关键词: 数值模拟, 流动, 传热, 熵产, 微针肋阵

Abstract: We employed numerical simulation to investigate flow, heat transfer and entropy generation for liquid water flowing across staggered and inline arranged micro pin fins. Results show that the entropy generation of inline and staggered micro pin fins are approximate when Re≤50.However, the difference between flow entropy generation and heat transfer entropy generation gradually increases for 50

Key words: numerical simulation, flow, heat transfer, entropy generation, micro pin fins

中图分类号:

TK124

赵红霞，匙明申，管宁. 流体横掠顺排和错排方形微针肋阵列的流动传热和熵产分析[J]. 山东科学, 2015, 28(1): 12-19.

ZHAO Hongxia,CHI Mingshen,GUAN Ning. Analysis of flow, heat transfer and entropy generation for flow across inline and staggered square micro pins in a channel[J]. SHANDONG SCIENCE, 2015, 28(1): 12-19.

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流体横掠顺排和错排方形微针肋阵列的流动传热和熵产分析

Analysis of flow, heat transfer and entropy generation for flow across inline and staggered square micro pins in a channel

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