Visualization Study of Flow in Axial Flow Inducer

[+] Author and Article Information
B. Lakshminarayana

Department of Aerospace Engineering, The Pennsylvania State University, University Park, Pa.

J. Basic Eng 94(4), 777-787 (Dec 01, 1972) (11 pages) doi:10.1115/1.3425553 History: Received December 28, 1971; Online October 27, 2010


A visualization study of the flow through a three ft dia model of a four bladed inducer, which is operated in air at a flow coefficient of 0.065, is reported in this paper. The flow near the blade surfaces, inside the rotating passages, downstream and upstream of the inducer is visualized by means of smoke, tufts, ammonia filament, and lampblack techniques. Flow is found to be highly three dimensional, with appreciable radial velocity throughout the entire passage. The secondary flows observed near the hub and annulus walls agree with qualitative predictions obtained from the inviscid secondary flow theory. Based on these investigations, methods of modeling the flow are discussed.

Copyright © 1972 by ASME
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