CFD Study on the Flow Characteristics in Filleted Microchannels
The flow characteristics of water in filleted microchannels were simulated based on CFD method. The flow pressure drop at different aspect ratio α and Re number were rearranged on the simulating results with laminar flow model. The results indicated that the pressure drop enlarges with the increase of α in the case of the constant width of the microchannel. Within the range of Re number of interest, Poiseuille number of the flow is constant for different Re, but decreases with increasing aspect ratio. An equation was fitted to describe the relationship between Po number and aspect ratio, i.e. Po = 10.161 l-2.4085α-H).1660α2+0.4809α3-0.1979α4 +0.0234α5.
Glass microchannel Pressure drop Cross-section shape Friction factor
YAN Hong-jie ZHOU Ping XU Ze-lin CHEN Zhuo MO Jing-wen
School of Energy Science and Engineering, Central South University,Changsha Hunan, 410083, P.R. China
国际会议
湘潭
英文
268-273
2011-07-19（万方平台首次上网日期，不代表论文的发表时间）