Nonlinear Simulation Of Acoustic Waves In Thermoacoustic Resonator
Author(s)
N. Mohd-Ghazali & JP. McHugh
Abstract
Nonlinear simulation of acoustic waves in
thermoacoustic resonator
N. Mohd-~hazali'& J. P. M c ~ u ~ h ~
I Faculty of Mechanical Engineering, Universiti Teknologi Malaysia,
~ a l a ~ s i a , ~ ~ e ~ a r t m e n t of Mechanical Engineering, University of New
Hampshire, USA.
Abstract
This research was motivated by thermoacoustic refrigeration, the cooling effect
achieved from the interaction of sound waves and solid boundaries. Systems that
have produced sound from a temperature difference, and cooling generated from
sound waves have been successfully built. Linear inviscid theory that has been
used to explain these effects, however, is incapable of dealing with the nonlinear
processes observed even at low oscillation amplitudes. A numerical simulation on
an entire thermoacoustic resonator was completed with finite difference
methodology. The method involved the solution to the compressible, twodimensional,
unsteady, nonlinear, viscous continuity, momentum, and energy
equations. The derivatives
Keywords
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