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Numerical study of thermoacoustic waves in an enclosure
Journal article   Peer reviewed

Numerical study of thermoacoustic waves in an enclosure

Bakhtier Farouk, Elaine S. Oran and Toru Fusegi
Physics of fluids (1994), v 12(5), pp 1052-1061
May 2000
DOI: https://doi.org/10.1063/1.870360
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

The behavior of thermoacoustic waves in a nitrogen-filled two-dimensional cavity is numerically studied in order to investigate how these waves may be used as an effective heat removal mechanism. The compressible, unsteady Navier–Stokes equations were solved for a series of initial conditions by combining a flux-corrected transport algorithm for convection with models for temperature-dependent viscosity and thermal conduction. By considering a one-dimensional test problem and comparing the results to existing data, the accuracy of the present numerical method is verified. In the problems considered, the vertical walls of a cavity were heated or cooled to generate the thermoacoustic waves. Both impulsive and gradual changes of the wall temperatures were considered. When the vertical wall was heated impulsively and nonuniformly, the waves induced two-dimensional flows within the enclosure. The observed thermoacoustic waves oscillate and eventually decay due to viscous and heat dissipation.

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35 citations in Web of Science
41 citations in Scopus

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#7 Affordable and Clean Energy

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Mechanics
Physics, Fluids & Plasmas
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