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Coupled transport of heat and mass in laminar tube flow
Author(s) -
Chen T. S.,
Scheffel G. A.,
Huang L. M.
Publication year - 1971
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450490408
Subject(s) - laminar flow , sublimation (psychology) , nusselt number , mechanics , mass transfer , heat transfer , thermodynamics , tube (container) , mass fraction , materials science , laminar flow reactor , mass flow , flow (mathematics) , open channel flow , physics , reynolds number , turbulence , composite material , psychology , psychotherapist
An analysis is performed of the mutually dependent heat and mass transfer for gas flow in a circular tube. Sublimation occurs at the inner surface of the wall, while the outer surface is thermally insulated from the external environment. The flow is assumed to be laminar and hydrodynamically fully developed. Mathematical expressions are derived and numerical results are given for bulk temperature and bulk mass fraction, wall temperature and wall mass fraction, wall heat and mass fluxes, local Nusselt number, temperature and mass fraction profiles, and length of the development region. Comparisons are made of the results based on a parabolic velocity profile with those based on a slug flow profile.