Two-Phase Flow Through Square and Circular Microchannels—Effects of Channel Geometry-Reference-Cited by-同舟云学术

Two-Phase Flow Through Square and Circular Microchannels—Effects of Channel Geometry

Published:2004-07-01 Issue:4 Volume:126 Page:546-552
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Chung Peter M.-Y.¹,Kawaji Masahiro¹,Kawahara Akimaro²,Shibata Yuichi³

Affiliation:

1. Dept. of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, Ontario, Canada

2. Dept. of Mechanical Engineering & Materials Science, Kumamoto University, Kumamoto, Kyushu, Japan

3. Dept. of Mechanical Engineering, Ibaraki National College of Technology, Hitachinaka-shi, Ibaraki-ken, Japan

Abstract

An adiabatic experiment was conducted to investigate the effect of channel geometry on gas-liquid two-phase flow characteristics in horizontal microchannels. A water-nitrogen gas mixture was pumped through a 96 μm square microchannel and the resulting flow pattern, void fraction and frictional pressure drop data were compared with those previously reported by the authors for a 100 μm circular microchannel. The pressure drop data were best estimated using a separated-flow model and the void fraction increased non-linearly with volumetric quality, regardless of the channel shape. However, the flow maps exhibited transition boundaries that were shifted depending on the channel shape.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/126/4/546/5903302/546_1.pdf

Reference23 articles.

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