| 引用本文： |
-
林清宇,朱礼,孙瑞娟,冯振飞,刘鹏辉,何荣伟.带次流道的波状细通道热沉熵产分析[J].广西科学,2017,24(3):323-326. [点击复制]
- LIN Qingyu,ZHU Li,SUN Ruijuan,FENG Zhenfei,LIU Penghui,HE Rongwei.Entropy Generation Analysis of Wave Mini—Channel Heat Sink With Secondary Passages[J].Guangxi Sciences,2017,24(3):323-326. [点击复制]
|
|
| 摘要: |
| [目的]探究次流道对细通道热沉换热性能的影响。[方法]使用CFD软件对常规直细通道热沉(CMS)、波状细通道热沉(WMS)、带次流道的波状细通道热沉(WMS-S)3种细通道热沉进行数值模拟和对比分析。[结果]WMS和WMS-S的传热系数k比CMS显著增加,低Re数时,WMS-S比WMS的传热性能略有增加,且WMS-S的传热不可逆损失较小。[结论]在低Re数时,次流道能有效增强波状细通道热沉传热系数k,且能够减小传热不可逆造成的能量损失。 |
| 关键词: 细通道热沉 熵产率 次流道 |
| DOI：10.13656/j.cnki.gxkx.20170411.001 |
| 投稿时间：2016-12-04 |
| 基金项目:广西石化资源加工及过程强化技术重点实验室主任基金项目(2015Z012)和广西大学科研基金项目(XJZ130359)资助。 |
|
| Entropy Generation Analysis of Wave Mini—Channel Heat Sink With Secondary Passages |
|
LIN Qingyu1, ZHU Li1, SUN Ruijuan2, FENG Zhenfei1, LIU Penghui1, HE Rongwei1
|
| (1.Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Guangxi, Nanning, 530004, China;2.Vocational and Technical College of Cangzhou, Cangzhou, Hebei, 061000, China) |
| Abstract: |
| [Objective] To investigate the effect of secondary passages on heat transfer mini-channel heat sinks.[Methods] Numerical simulations were carried to study conventional mini-channel heat sink, wave mini-channel heat sink, wave mini-channel heat sink with secondary passages with CFD software.[Results] The results shows that the heat transfer coefficient k of WMS and WMS-S is significantly higher than that of CMS, and at low Re number the heat transfer performance of WMS-S is slightly higher than that of WMS, and the irreversible loss of WMS-S is smaller.[Conclusion] At low Re number, the secondary passages can effectively enhance the heat transfer coefficient k of the corrugated fine channel and reduce the energy loss caused by heat transfer irreversibility. |
| Key words: mini-channel heat sink entropy generation rate secondary passage |
