Numerical simulation of a thermoacoustic refrigerator. I: Unsteady adiabatic flow around the stack
type: Item
instance of: scholarly article
title: Numerical simulation of a thermoacoustic refrigerator. I: Unsteady adiabatic flow around the stack
zbMATH Open document ID: 0862.76057
author: Aniruddha S. Worlikar
author: Omar M. Knio
published in: Journal of Computational Physics
publication date: 1997-06-04T00:00:00Z
review text: A low Mach-number compressible flow model for the simulation of acoustically driven flow in a thermoacoustic stack is constructed. The model is based on the assumption that the acoustic wavelength is much larger than the characteristic hydrodynamic lengthscale. A simplified version of the model is applied to analyze unsteady flow in the neighborhood of an idealized thermoacoustic stack which consists of a periodic array of thin plates placed in an acoustic standing wave. Computed results are used to analyze, for different stack configurations, the nonlinear response of the flow to different acoustic driving amplitudes and frequencies.
Mathematics Subject Classification ID: 76M20
Mathematics Subject Classification ID: 76Q05
zbMATH DE Number: 947711
zbMATH Keywords: low Mach-number flow model
zbMATH Keywords: third-order Adams-Bashforth scheme
zbMATH Keywords: Helmholtz decomposition
zbMATH Keywords: acoustic wavelength
zbMATH Keywords: characteristic hydrodynamic lengthscale
zbMATH Keywords: periodic array of thin plates
MaRDI profile type: Publication
full work available at URL: jcph.1996.0185
OpenAlex ID: W2066840564
DOI: 10.1006/JCPH.1996.0185
description: scientific article; zbMATH DE number 947711