Experimental and computational visualization of the flow field in a thermoacoustic stack

Philippe Blanc-Benon*, Etienne Besnoin, Omar Knio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

The oscillating flow field in a thermoacoustic stack is visualized experimentally using PIV measurements, and computationally using results of low-Mach-number simulations. The experiments and computations are performed under similar conditions. Results are obtained for two distinct configurations, involving thin and thick stack plates. In the first case, the flow field around the edge of the stack exhibits elongated vorticity layers, while in the latter it is dominated by the shedding and impingement of concentrated vortices. A close agreement between experimental and computational results is found, thus providing strong support for both approaches and further predictions.

Original languageEnglish (US)
Pages (from-to)17-24
Number of pages8
JournalComptes Rendus - Mecanique
Volume331
Issue number1
DOIs
StatePublished - Jan 1 2003

Keywords

  • Heat transfer
  • Oscillatory flow
  • PIV
  • Simulation
  • Thermoacoustics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

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