In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 81, No. 5 ( 1987-05-01), p. 1350-1354
Abstract:
A previous review [J. Acoust. Soc. Am. 70, 1213–1219 (1981)] emphasized sound absorption in water fog of droplets within sizes near 10 μ. This supplemental article presents results for the core where droplet size is much smaller, ≂0.01 μ. Theoretical formulation for these small droplets is shown to be basically the same as for the larger droplets. The attenuation coefficient due to mass transfer, which some authors claimed to be two (or three) orders of magnitude larger for small drops than for large ones, is accompanied by an increase in the frequency of maximum absorption by the same orders of magnitude. A correction factor is also introduced for the relaxation times from the viewpoint of modern fog kinetics. The result predicts a counter effect or a drastic decrease in the absorption abnormality due to submicron droplets, but the effect is less, the larger the droplet, which, therefore, may lead to a theoretical generalization of the problem applicable to droplets of all sizes.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1987
detail.hit.zdb_id:
1461063-2
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