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TECHNICAL BRIEFS

An Asymptotic Model of Viscous Flow Limitation in a Highly Collapsed Channel

[+] Author and Article Information
O. E. Jensen

Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 9EW, United Kingdom

J Biomech Eng 120(4), 544-546 (Aug 01, 1998) (3 pages) doi:10.1115/1.2798028 History: Received April 15, 1997; Revised September 29, 1997; Online October 30, 2007

Abstract

A viscous flow through a long two-dimensional channel, one wall of which is formed by a finite-length membrane, experiences flow limitation when the channel is highly collapsed over a narrow region under high external pressure. Simple approximate relations between flow rate and pressure drop are obtained for this configuration by the use of matched asymptotic expansions. Weak inertial effects are also considered.

Copyright © 1998 by The American Society of Mechanical Engineers
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