Abstract
Evaporation rates for single drops of distilled water suspended in dry air in upwards motion and subject to a horizontal standing wave sound field have been measured from photographic records. The range of drop diameter (0.8-2mm), sound pressure (132-152dB) and frequency (82-734 Hz) yielded parameter ranges of oscillating Reynolds number 16 < Re < 180 and Strouhal number 0.3 < S < 2.8 at convective Reynolds numbers in the range 5 < Rec < 45. Empirical correlations are presented for S < 1 and S > 1, respectively. The data for these cases show the increase in Nusselt number owing to the sound field to be 5-90% and 8-30%, respectively.
Original language | English |
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Journal | International Journal of Heat and Mass Transfer |
Volume | 21 |
Issue number | 4 |
Pages (from-to) | 511-517 |
ISSN | 0017-9310 |
DOIs | |
Publication status | Published - 1978 |