Parameters Affecting the Velocity of Particles in an Abrasive Jet

[+] Author and Article Information
J. Wolak, P. Worm, I. Patterson, J. Bodoia

Mechanical Engineering Department, University of Washington, Seattle, Wash.

J. Eng. Mater. Technol 99(2), 147-152 (Apr 01, 1977) (6 pages) doi:10.1115/1.3443425 History: Received May 06, 1976; Online August 17, 2010


Silicon carbide particles, mesh 60, were introduced at a known time-rate (wp ) into an air stream flowing at a time-rate (wa ) through a parallel sided nozzle of circular cross-section. Particle velocity (Vz ) within the resulting abrasive jet was measured by means of a specially adapted streaking camera technique. Vz was found to be a function of the nozzle length (L), of the distance (z) from the nozzle exit, of the radial position (r) within the jet, and of the loading ratio (wp /wa ). The results indicate that the parameters Vz , L, z, wa and wp are of primary importance in studies of abrasive erosion as well as in the design and operation of air-powered sandblasting equipment.

Copyright © 1977 by ASME
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