摘要
设计了一种横断微腔内置双肋片的横断微通道(IMC-DR),并采用数值模拟方法研究了双肋片对其流动和传热的影响,其结果与单肋片横断微通道(IMC-SR)、横断微通道(IMC)和光滑微通道(PMC)对比。结果表明,IMC-DR通道的摩擦阻力系数和努塞尔数均高于IMC-SR、IMC和PMC通道。在所研究的雷诺数范围内,IMC-DR通道的综合评价因子为1.23~1.36,其分别比IMC-SR和IMC通道平均高0.93%和18.48%,表明双肋片能够进一步提高微通道的综合性能。
In this paper,an interrupted microchannel with double ribs in the transverse microchamber(IMC-DR)is designed,and the effect of the double ribs on flow and heat transfer in this microchannel is studied by numerical simulation.In addition,the results are compared with the single-rib interrupted microchannel(IMC-SR),the interrupted microchannel(IMC),and the plain microchannel(PMC).The results show that the friction factor and the Nusselt number of the IMC-DR channel are higher than those of IMC-SR,IMC and PMC channels.In the studied Reynolds number range,the comprehensive evaluation factor of the IMC-DR channel ranges from 1.23 to 1.36,which is 0.93%and 18.48%higher than the IMC-SR and IMC channels,respectively,indicating that the double ribs can further improve the comprehensive performance of microchannel.
作者
蓝永琪
胡振俊
廖岚岚
郑思尧
冯振飞
LAN Yongqi;HU Zhenjun;LIAO Lanlan;ZHENG Siyao;FENG Zhenfei(School of Mechanical Engineering,Guangxi University,Nanning 530004,China;Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology,Guangxi University,Nanning 530004,China)
出处
《化工科技》
CAS
2020年第6期37-41,共5页
Science & Technology in Chemical Industry
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资助项目(2019Z012)。
关键词
微通道
双肋片
数值模拟
流动
传热
Microchannel
Double ribs
Numerical simulation
Flow
Heat transfer
