Abhishek Kumar Chandra and Kaushal Kishor and Wasim Khan and Dhananjay Singh and M. S. Alam
Single Phase Fluid Flow in Series of Microchannel Connected via ConvergingDiverging Section with or without Throat
602 - 608
2017
11
8
International Journal of Chemical and Molecular Engineering
https://publications.waset.org/pdf/10007899
https://publications.waset.org/vol/128
World Academy of Science, Engineering and Technology
Single phase fluid flow through series of uniform microchannels connected via transition section (convergingdiverging section with or without throat) was analytically and numerically studied to characterize the flow within the channel and in the transition sections. Three sets of microchannels of diameters 100, 184, and 249 μm were considered for investigation. Each set contains 10 numbers of microchannels of length 20 mm, connected to each other in series via transition sections. Transition section consists of either convergingdiverging section with throat or without throat. The effect of nonuniformity in microchannels on pressure drop was determined by passing waterair through the set of channels for Reynolds number 50 to 1000. Compressibility and rarefaction effects in transition sections were also tested analytically and numerically for air flow. The analytical and numerical results show that these configurations can be used in enhancement of transport processes. However, convergingdiverging section without throat shows superior performance over with throat configuration.
Open Science Index 128, 2017