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RESEARCH PAPERS

Phasic and Spatial Pressure Measurements in a Femoral Artery Branch Model for Pulsatile Flow

[+] Author and Article Information
L. H. Back, Y. I. Cho

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, Calif. 91109

D. W. Crawford

Department of Medicine, Cardiology Division, University of Southern California, Los Angeles, Calif. 90033

J Biomech Eng 108(3), 251-258 (Aug 01, 1986) (8 pages) doi:10.1115/1.3138611 History: Received October 07, 1985; Online June 12, 2009

Abstract

Phasic and spatial time-averaged pressure distributions were measured in a 60-deg femoral artery branch model over a large range of branch flow ratios and at physiological Reynolds numbers of about 120 and 700. The results obtained with an in-vivolike flow wave form indicated spatial adverse time average pressure gradients in the branch vicinity which increased in magnitude with branch flow ratio, and the importance of the larger inertial effects at the higher Reynolds numbers. Pressure losses in the branch entrance region were relatively large, and corresponding flow resistances may limit branch flow, particularly at higher Reynolds numbers. The effect of branch flow was to reduce the pressure loss in the main lumen.

Copyright © 1986 by ASME
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