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The effect of oscillations superimposed upon a gas stream on mass transfer

✍ Scribed by M. Baerns

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
690 KB
Volume
31
Category
Article
ISSN
0009-2509

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✦ Synopsis

The effect of progressive oscillations being superimposed upon laminar gas flow in a pipe on mass transfer between fluid and wall was experimentally investigated. Frequency and intensity of oscillations were varied between 580 to 1380 c.p.s., and 148 to 160 dB respectively. The increase of mass transfer which amounted up to 150% was attributed to the generation of acoustic turbulence close to the wall. This turbulence occured when the amplitude of oscillation reached the magnitude of the acoustic boundary layer thickness. To quantitatively describe the dependence of mass transfer increase on frequency and intensity of oscillation an empirical correlation was derived.

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