Pulsatile Flow Through a Branching Tube With Collapsing Walls: Volumetric Flow Redistribution

[+] Author and Article Information
R. B. Davis

Trinity College, Hartford, Conn. 06106

D. J. Schneck

Biomedical Engineering Program, Virginia Polytechnic Institute and State University, Blacksburg, Va.

W. H. Gutstein

New York Medical College, Valhalla, New York

J. Fluids Eng 106(4), 430-434 (Dec 01, 1984) (5 pages) doi:10.1115/1.3243142 History: Received August 15, 1983; Online October 26, 2009


A hydraulic collapse mechanism was incorporated into a recirculating pulsatile flow system to collapse an elastic branching tube in a controlled manner. Changes in volumetric flow rate into and out of the tube model as well as axial pressure drop were monitored during this process. It was found that the driven collapse of the tube acted as a pump, the effectiveness of which was dependent on upstream and downstream resistance. In addition, there was noted a difference in the volumetric flow curves representing fluid leaving the pre- and the post-collapsed model under the same inflow conditions.

Copyright © 1984 by ASME
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