Evaporation rates of drops in forced convection with superposed transverse sound field

Poul S. Larsen*, John W. Jensen

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

    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 languageEnglish
    JournalInternational Journal of Heat and Mass Transfer
    Volume21
    Issue number4
    Pages (from-to)511-517
    ISSN0017-9310
    DOIs
    Publication statusPublished - 1978

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