Unsteady heat and mass transfer from a spheroid
- Tulane Univ., New Orleans, LA (United States). School of Engineering
The unsteady heat-transfer processes from oblate or prolate spheroids, at the limit of very small Peclet numbers is examined. A perturbation technique for the temperature and the geometry of the particle is used to obtain the rates of heat and mass transfer, first in the Laplace and then in the time domain. A solution to the problem is obtained, including the {epsilon}{sup 2} contribution ({epsilon} is the eccentricity). The solution reveals the existence of several history terms, which are analogous to the history terms. In addition, an exact expression for the steady-state heat transfer from a spheroid is obtained using a convenient transformation of the heat-transfer integral.
- Sponsoring Organization:
- National Science Foundation, Washington, DC (United States)
- OSTI ID:
- 460556
- Journal Information:
- AIChE Journal, Journal Name: AIChE Journal Journal Issue: 3 Vol. 43; ISSN 0001-1541; ISSN AICEAC
- Country of Publication:
- United States
- Language:
- English
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