Vortex Flows and Related Numerical Methods II
ESAIM: Proceedings,
Vol. 1, 1996, pp. 363-375
Numerical Simulation of a Thermodynamic
Refrigerator
Aniruddha Worlikar and Omar M. Knio
Department of Mechanical Engineering
The Johns Hopkins University
Baltimore, MD 21218, USA
Rupert Klein
Fachbereich Sicherheitstechnik
Bergische Universität, Gauß-Str. 20
D-42097 Wuppertal, Germany
Abstract
A thermoacoustic device consists of two main components: (1) a
resonance tube where the flow is characterized by length scales of the
order of the acoustic wavelength, and (2) a stack of plates which are
separated by distances much smaller than the acoustic wavelength. This
effort focuses on the development of numerical schemes which overcome
this scale disparity in an efficient manner. Two approaches are
discussed in the paper. The first is a multiple-pressure-variable
approach that is suitable for the simulation of resonance tube
acoustics and for analyzing interactions between heat addition and long
waves. The second is a multi-dimensional model of the stack region
which is based on fast solution of the zero-Mach-number conservation
equations.
Vortex Flows and Related
Numerical Methods II
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