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RESEARCH PAPERS

Development of an Integrated BEM for Hot Fluid-Structure Interaction

[+] Author and Article Information
G. F. Dargush, P. K. Banerjee

Department of Civil Engineering, State University of New York at Buffalo, Buffalo, NY 14260

J. Eng. Gas Turbines Power 112(2), 243-250 (Apr 01, 1990) (8 pages) doi:10.1115/1.2906170 History: Received January 18, 1989; Online April 24, 2008

Abstract

A boundary element approach is developed for problems of hot fluid-structure interaction. The structure is idealized as a thermoelastic solid, and a time-domain, boundary-only integral formulation is described. Meanwhile, several approaches are discussed for the hot fluid. Integral equations are developed for both compressible and incompressible thermoviscous flow. Due to the presence of nonlinear convective terms in the governing differential equations, domain discretization is generally required. However, with the introduction of reference velocities, volume modeling often can be confined to regions near obstacles and walls. All formulations are implemented for two-dimensional problems in GP-BEST, a general purpose boundary element computer program. An overview of this numerical implementation is provided, along with several illustrative examples. The present fluid formulations are appropriate in the low to medium Reynolds number ranges; however, some enhancements required for higher speed simulations are noted.

Copyright © 1990 by The American Society of Mechanical Engineers
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