Article
Reciprocal theorem for convective heat and mass transfer from a particle in Stokes and potential flows
Physical Review Fluids
(2016)
Abstract
In the study of convective heat and mass transfer from a particle, key quantities of interest are usually the average rate of transfer and the mean distribution of the scalar (i.e., temperature or concentration) at the particle surface. Calculating these quantities using conventional equations requires detailed knowledge of the scalar field, which is available predominantly for problems involving uniform scalar and flux boundary conditions. Here we derive a reciprocal relation between two diffusing scalars that are advected by oppositely driven Stokes or potential flows whose streamline configurations are identical. This relation leads to alternative expressions for the aforementioned average quantities based on the solution of the scalar field for uniform surface conditions. We exemplify our results via two applications: (i) heat transfer from a sphere with nonuniform boundary conditions in Stokes flow at small Péclet numbers and (ii) extension of Brenner's theorem for the invariance of heat transfer rate to flow reversal.
Keywords
- forced convection,
- fluid dynamics
Disciplines
Publication Date
June 21, 2016
DOI
10.1103/PhysRevFluids.1.022001
Publisher Statement
©2016 American Physical Society. Publisher's version of record: https://doi.org/10.1103/PhysRevFluids.1.022001
Citation Information
Vahid Vandadi, Saeed J Kang and Hassan Masoud. "Reciprocal theorem for convective heat and mass transfer from a particle in Stokes and potential flows" Physical Review Fluids Vol. 1 Iss. 2 (2016) p. 22001-1 - 22001-7 ISSN: 2469-990X Available at: http://works.bepress.com/hassan-masoud/4/