Numerical study of thermoacoustic heat exchangers in the thin plate limit

Etienne Besnoin, Omar M. Knio*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


The velocity and temperature fields in an idealized thermoacoustic refrigerator are analyzed computationally. The numerical model simulates the unsteady mass, momentum, and energy equations in the thin-plate, low-Mach-number limits. Two-dimensional unsteady calculations of the flow field in the neighborhood of the stack and heat exchangers are performed using a vorticity-based scheme for stratified flow. The computations are applied to analyze the effects of heat-exchanger length and position on the performance of the device. The results indicate that the cooling load peaks at a well-defined heat-exchanger length, stack gap, and distance between the heat exchangers and the stack plates.

Original languageEnglish (US)
Pages (from-to)445-471
Number of pages27
JournalNumerical Heat Transfer; Part A: Applications
Issue number5
StatePublished - Oct 2001
Externally publishedYes

ASJC Scopus subject areas

  • Numerical Analysis
  • Condensed Matter Physics


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