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Geller DA, Swift GW. Saturation of thermoacoustic mixture separation. J Acoust Soc Am. 2002;111(4):1675-84doi: 10.1121/1.1453449.
Geller, D. A., & Swift, G. W. (2002). Saturation of thermoacoustic mixture separation. The Journal of the Acoustical Society of America, 111(4), 1675-84. https://doi.org/10.1121/1.1453449
Geller, D A, and Swift, G W. "Saturation of thermoacoustic mixture separation." The Journal of the Acoustical Society of America vol. 111,4 (2002): 1675-84. doi: https://doi.org/10.1121/1.1453449
Geller DA, Swift GW. Saturation of thermoacoustic mixture separation. J Acoust Soc Am. 2002 Apr;111(4):1675-84. doi: 10.1121/1.1453449. PMID: 12002850.
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J Acoust Soc Am. 2002 Apr;111(4):1675-84. doi: 10.1121/1.1453449.

Saturation of thermoacoustic mixture separation.

The Journal of the Acoustical Society of America

D A Geller, G W Swift

Affiliations

  1. Condensed Matter and Thermal Physics Group, Los Alamos National Laboratory, New Mexico 87545, USA.

PMID: 12002850 DOI: 10.1121/1.1453449

Abstract

The theory for thermoacoustic mixture separation is extended to include the effects of a nonzero concentration gradient. New data are presented, which are in excellent agreement with this theory. The maximum concentration gradient which may be achieved in a binary mixture of gases through this separation process is intrinsically limited by the fractional pressure amplitude, by the tidal displacement, and by the size of the thermal diffusion ratio. Ordinary diffusion further detracts from the attainable final concentration gradient and can become the dominant remixing process as the cross section of the duct is increased. Rayleigh streaming also works against thermoacoustic separation, and an estimate of the molar flux from streaming is given.

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