Numerical simulation of slug flow in microchannels
سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 151
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شناسه ملی سند علمی:
DMECONF08_028
تاریخ نمایه سازی: 31 فروردین 1402
چکیده مقاله:
The rapid development of microfabrication techniques creates new opportunities for applications of microchannel reactor technology in chemical reaction engineering. Even though many investigators have attempted numerical simulation of two-phase flows in microchannels, most efforts seem to have incorrectly captured the flow physics, especially the slug flow regime characteristics. The presence of a thin liquid film in the order of ۱۰ μm(or less) around the bubble may contribute to the above difficulty. This study simulated a slug flow regime in a rectangular microchannel with a ۲۰۰ ۴۰ ʽm cross-section using air and water as working fluids. An ANSYS Fluent software package and a Volume Of Fluid (VOF) method have been used, and the minimum mesh resolution required to capture the liquid film surrounding the gas bubble is reported.
نویسندگان
Ali Yeganeh
Department of Physics , Faculty of Physics, University of Isfahan, Isfahan, Iran
Masih Bahrani
Department of Physics , Faculty of Physics, University of Isfahan, Isfahan, Iran
Mohammad Rajaei
Department of Mechanical Engineering, Faculty of Engineering , University of Isfahan, Isfahan,Iran