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RESEARCH PAPERS

Simulation of the Pressure Field Due to a Submerged Oscillating Jet Impacting on a Solid Wall

[+] Author and Article Information
Ph. F. Genoux

Direction des Recherches Etudes et Techniques, Paris, France

G. L. Chahine

Tracor Hydronautics, Inc., Laurel, Md.

J. Fluids Eng 106(4), 491-495 (Dec 01, 1984) (5 pages) doi:10.1115/1.3243156 History: Received July 19, 1983; Online October 26, 2009

Abstract

This paper presents some results obtained with the simulation of a submerged oscillating jet impacting on a solid wall. The oscillating jet which organizes into large vortical structures is simulated by the emission of vortex rings at a constant frequency. Outside of the cores of the rings the fluid is assumed to be inviscid and irrotational. The positions of the tori are obtained by combining for each torus its self-induced velocity with the velocity induced by all other rings and ring-images in the wall. The tangential velocities and the pressures in the fluid at the wall are then computed. The high shearing and suction forces found at the wall may explain the enhanced erosivity and cleaning action of oscillating jets.

Copyright © 1984 by ASME
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