Acoustic streaming measurements in annular thermoacoustic engines

Experiments with an annular thermoacoustic engine employing quasiadiabatic interaction between traveling acoustic waves and an inhomogeneously heated porous material indicate the presence of a closed-loop mass flux. A qualitative modeling of the enthalpy flux in the thermoacoustic core provides an o...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2003-04, Vol.113 (4 Pt 1), p.1892-1899
Main Authors: Joba, Stéphane, Gusev, Vitalyi, Lotton, Pierrick, Bruneau, Michel
Format: Article
Language:English
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Summary:Experiments with an annular thermoacoustic engine employing quasiadiabatic interaction between traveling acoustic waves and an inhomogeneously heated porous material indicate the presence of a closed-loop mass flux. A qualitative modeling of the enthalpy flux in the thermoacoustic core provides an opportunity to estimate the thermal convection associated with this mass flux, by using temperature measurement at different positions in the system. The estimated acoustically induced mass flux is in accordance with recent theoretical results.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.1555076