Heat transfer from particles confined between two parallel walls

[+] Author and Article Information
Ashok S. Sangani

Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York, 13210, USA

1Corresponding author.

ASME doi:10.1115/1.4041802 History: Received August 01, 2018; Revised September 27, 2018


The rate of heat conduction (or mass transfer by diffusion) from a cylindrical or spherical particle confined between two walls is determined as a function of the position and the radius of the particle. It is shown that the appropriate Green's function can be determined using the method of images even when the resulting series is divergent with the help of Shanks transformation. Asympotic expansions for small particle radius compared to the gap between the walls are combined with the expressions for the case in which the gap between the particle and one of the walls is small compared to the particle radius to provide formulas that are surprisingly accurate for estimating the rate of heat transfer for the entire range of parameters that include the radius and the position of the particle. Results are also presented for the thermal dipole induced by a sphere placed between two walls with unequal temperatures and these are used to predict the effective thermal conductivity of thin composite films containing spherical particles.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In