Computational modelling of two phase fluid flow in micro/meso channels

Author

Onbasioglu, S.U. ; Kurnaz, S.

Author_Institution

Dept. of Mech. Eng., Istanbul Tech. Univ., Turkey

fYear

2003

fDate

20-22 Nov. 2003

Firstpage

616

Lastpage

620

Abstract

A computational study of gas-liquid flows in micro/meso channels with characteristic dimensions of 100 /spl mu/m to 1 mm has been conducted. The working fluids under investigation passing through the circular channel were air and water. Two phase flow patterns obtained from the computed results have been compared to those of the ones reported in the literature and a reasonable agreement has been obtained. Also the frictional pressure drop values predicted during the computations were within the range of the measured ones. After the validation of the computational procedure, keeping the dimensionless numbers relevant to the small hydraulic diameters constant, the size of the channel has been changed to understand the transition to the flow regime in which the "conventional" governing equations fail.

Keywords

channel flow; computational fluid dynamics; two-phase flow; 100 micron to 1 mm; channel flow; computational modelling; conventional equations; flow regime; flow transition; fluid flow; frictional pressure; gas-liquid flow; mesochannels; microchannels; two phase flow pattern; Computational modeling; Costs; Fluid flow; Hydrodynamics; Mechanical engineering; Navier-Stokes equations; Pressure measurement; Space technology; Surface tension; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Recent Advances in Space Technologies, 2003. RAST '03. International Conference on. Proceedings of

Conference_Location

Istanbul, Turkey

Print_ISBN

0-7803-8142-4

Type

conf

DOI

10.1109/RAST.2003.1303988

Filename

1303988