Coupled Gas-Liquid-Structure Systems: Part 1—Theory

[+] Author and Article Information
F. M. Joos

Creare, Inc., Hanover, NH 03755

P. W. Huber

Science Concepts, Inc., Washington, DC 20003

J. Appl. Mech 54(4), 935-941 (Dec 01, 1987) (7 pages) doi:10.1115/1.3173142 History: Received December 17, 1986; Revised July 09, 1987; Online July 21, 2009


A complex hydrodynamic transient due, for example, to the injection of gas into a liquid, creates pressure forces on adjacent structures. These structures, together with gas cavities in the liquid itself, represent flexible boundaries to the distributed, time-varying liquid mass. The response of the gas-liquid-structure system depends on the intrinsic flexibility of the gas cavities and on the flexibility of structural boundaries. In this paper we analyze the dynamics of such systems where the liquid is incompressible. We present systematic procedures for driving the response of one system from the known response of a geometrically identical system with different flexibility. Finally, we outline the analysis for the compressible case.

Copyright © 1987 by ASME
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