NDLI: A Preliminary PIV and Analytical Investigation of Wall Shear in Micro Channel Slug Flow

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Black, Kelly Bradford, A. Bruno Martel, Joseph
Copyright Year	2007
Abstract	This paper describes the methods and initial results of an investigation aimed at answering questions of engineering significance pertaining to slug flow. The authors use two approaches to study slug flow. First, the analytical solution of Gaskell et al and Gurcan [5,6] is examined in detail, with special attention being paid to its predictions pertaining to the special case of slug flow. The numerical behavior of this solution and the measures needed to enhance its convergence are also commented upon. Second, micro-PIV data of water/oil slug flow in a micro-channel is reported and examined in light of the predictions of the Gaskell model. Quantitative results showing the details of the re-circulating internal flow fields in the slugs are presented. Results for wall shear stress distributions and evolution of the velocity profiles from the centerline to the rear interface are also presented. Significant increases in the wall shear stress (compared to a fully developed Poiseuille flow) are observed in the regions near the fluid interfaces.
Starting Page	869
Ending Page	873
Page Count	5
File Format	PDF
ISBN	079184305X
DOI	10.1115/IMECE2007-42113
e-ISBN	0791838129
Volume Number	Volume 11: Micro and Nano Systems, Parts A and B
Conference Proceedings	ASME 2007 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2007-11-11
Publisher Place	Seattle, Washington, USA
Access Restriction	Subscribed
Subject Keyword	Water Fluids Internal flow Slug flows Poiseuille flow Shear stress Shear (mechanics) Microchannels
Content Type	Text
Resource Type	Article

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