Heat or mass transfer from a moving drop - Some approximate relations for the Nusselt number

Gregory Ryskin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The external problem of heat/mass transfer for a steadily moving surfactant-free spherical drop is considered. Simple approximate relations for the maximum velocity at the surface of the drop and the Nusselt (Sherwood) number are derived on the basis of the boundary-layer-type estimates. The relations contain adjustable 0(1) numerical factors, which are chosen so as to give the best fit to the results of the previously obtained accurate numerical solutions of the Navier-Stokes and convective-diffusion equations for Re ≤ 200 and Pe ≤ 1000. It is also indicated how the knowledge of the maximum surface velocity allows one to reduce the internal problem to the well-documented case or low Reynolds number.

Original languageEnglish (US)
Pages (from-to)741-749
Number of pages9
JournalInternational Communications in Heat and Mass Transfer
Volume14
Issue number6
DOIs
StatePublished - 1987

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Chemical Engineering(all)
  • Condensed Matter Physics

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