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RESEARCH PAPERS

A Study of the Effects of a Transversely Moving Boundary on Plane Posieuille Flow

[+] Author and Article Information
J. M. Robertson, M. E. Clark

Department of Theoretical and Applied Mechanics, University of Illinois at Urbana-Champaign, Urbana, Ill. 61801

L. C. Cheng

Department of Mechanical Engineering, Wichita State University, Wichita, Kan. 67208

J Biomech Eng 104(4), 314-323 (Nov 01, 1982) (10 pages) doi:10.1115/1.3138365 History: Received June 01, 1981; Revised July 06, 1982; Online June 15, 2009

Abstract

Numerical (finite-difference) solutions in vorticity-stream function variables using a nonorthogonal geometric transform are found for viscous flow through a plane channel in which a portion of the boundary oscillates to change the flow. Calculations were made for three rates of inflow and for three frequencies of oscillation. The boundary pumpage relative to inflow decreased with inflow Karman number and with the oscillatory period of the boundary. The maximum shear stress, as indicated by the maximum vorticity, increased with Karman number and occurred when the boundary was in the maximum stenotic position. It did not change with boundary period except for the case when the period was the smallest. The channel pressure drop was significantly affected by the pumpage as well as the boundary nonuniformity.

Copyright © 1982 by ASME
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