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RESEARCH PAPERS

Modeling of Flow-Induced Vibrations in Heat Exchangers and Nuclear Reactors

[+] Author and Article Information
G. S. Beavers, R. Plunkett

Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, Minn.

J. Fluids Eng 96(4), 358-364 (Dec 01, 1974) (7 pages) doi:10.1115/1.3447170 History: Received February 19, 1974; Online October 12, 2010

Abstract

This paper discusses the appropriate scaling factors for the modeling of the fluid-mechanical interaction of complex structures. The possible mechanisms of flow-excited vibration are described, and scaling parameters are derived from considerations of the mechanical and fluid systems. The paper is particularly concerned with the flow-induced vibrations of banks of cylinders in single phase, high Reynolds number, turbulent, cross flow, as occur for example in light water nuclear reactors and heat exchangers. It is concluded that the modeling of the tube banks in light water nuclear reactors will involve a mismatch of Reynolds number, but that the major phenomena of fluid-solid interaction in the single-phase flow region will probably be closely replicated if the Reynolds number is high enough so that the entering flow is turbulent and if the scaling ratio is not too large.

Copyright © 1974 by ASME
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