RESEARCH PAPERS: Additional Technical Papers

The Force Acting on a Particle and a Bubble in a Spherically Oscillating Inviscid Liquid

[+] Author and Article Information
A. Marmur, E. Rubin

Department of Chemical Engineering, Technion—Israel Institute of Technology, Haifa, Israel

J. Fluids Eng 98(3), 483-486 (Sep 01, 1976) (4 pages) doi:10.1115/1.3448377 History: Received June 16, 1976; Online October 12, 2010


The force acting on a particle and a bubble in a spherically oscillating inviscid liquid is computed and proved to be directed toward the center of the spherical motion. The theoretical solution is analytic for rigid particles and partly numerical for gas bubbles. Results show that under appropriate conditions this force is of the order of magnitude or greater than the gravity force, and it is greater for bubbles than for rigid particles. The use of this phenomenon as a means of separation and controlling particle motion in both gravitational and nongravitational fields is suggested.

Copyright © 1976 by ASME
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