带次流道的波状细通道热沉熵产分析  

Entropy Generation Analysis of Wave Mini-Channel Heat Sink With Secondary Passages

作　　者：林清宇[1] 朱礼[1] 孙瑞娟[2] 冯振飞[1] 刘鹏辉[1] 何荣伟[1] UN Qingyu;ZHU Li;SUN Ruijuan;FENG Zhenfei;LIU Penghui;HE Rongwei(Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University,Guangxi, Nanning, 530004, China;Vocational and Technical College of Cangzhou, Cangzhou, Hebei, 061000,China)

机构地区：[1]广西大学化学化工学院,广西石化资源加工及过程强化技术重点实验室,广西南宁530004 [2]沧州职业技术学院,河北沧州061000

出　　处：《广西科学》2017年第3期323-326,共4页Guangxi Sciences

基　　金：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);广西大学科研基金项目(XJZ130359)资助

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。【Objective】To investigate the effect of secondary passages on heat transfer mini-chan-nel heat sinks.【Methods】Numerical simulations were carried to study conventional min卜chan-nel heat sink?wave mini-channel heat sink?wave mini-channel heat sink with secondary passa-ges 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.

关 键 词：细通道热沉 熵产率 次流道 

分 类 号：TK124[动力工程及工程热物理—工程热物理]