NDLI: Effect of Channel Wetting Properties on Flow Characteristics of Gas-Liquid Two-Phase Flow in a Microchannel

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Ide, Hideo Kimura, Ryuji Kawaji, Masahiro
Copyright Year	2011
Abstract	An optical measurement system and video camera were used to investigate gas-liquid two-phase flow characteristics in wetting and poorly wetting circular microchannels of 100 μm diameter. By examining the optical sensor signals from which void fraction and the lengths and velocities of gas slugs and liquid slugs were measured, the effects of wetting on the adiabatic two-phase flow characteristics of nitrogen gas and water were investigated. The data were obtained using a T-junction with the same internal diameter as the microchannel, but the T-junction itself was well wetting in both experiments. Besides the flat nose and tail of gas slugs at low gas and liquid flow rates, poorly wetting microchannel showed higher void fraction and friction pressure drop compared to the well wetting microchannel. The poorly wetting microchannel also showed the presence of short and low moving liquid slugs which were absent in well-wetting microchannel.
Sponsorship	Fluids Engineering Division
Starting Page	2493
Ending Page	2500
Page Count	8
File Format	PDF
ISBN	9780791844403
DOI	10.1115/AJK2011-10015
Volume Number	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
Conference Proceedings	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
Language	English
Publisher Date	2011-07-24
Publisher Place	Hamamatsu, Japan
Access Restriction	Subscribed
Subject Keyword	Water Wetting Video cameras Nitrogen Flow (dynamics) Microchannels Optical measurement Friction Two-phase flow Slug flows Pressure drop Porosity Sensors Signals Junctions
Content Type	Text
Resource Type	Article

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Effect of Wetting on Adiabatic Gas-Liquid Two-Phase Flow in a Microchannel

Characteristics of Two-Phase Flows in a Rectangular Microchannel With a T-Junction Type Gas-Liquid Mixer

Effect of Inlet Geometry on Adiabatic Gas-Liquid Two-Phase Flow in a Microchannel

The Effects of Inlet Geometry on Gas-Liquid Two-Phase Flow in Microchannels (Keynote)

Investigation of Characteristics of Gas-Liquid Two-Phase Flows in a Rectangular Microchannel With Return Bends

Effects of Liquid Properties on Pressure Drop of Two-Phase Gas-Liquid Flows Through a Microchannel

Pressure Drop of Accelerating Slug Flow in Microchannels: Modeling and Experiment

Effects of Channel Length on Gas-Liquid Two-Phase Flow Phenomena in a Microchannel

Unique Characteristics of Adiabatic Gas-Liquid Flows in Microchannels: Diameter and Shape Effects on Flow Patterns, Void Fraction and Pressure Drop

Effect of Channel Wetting Properties on Flow Characteristics of Gas-Liquid Two-Phase Flow in a Microchannel

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