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Uniform flux heat transfer to a gas in laminar forced convection in a circular tube
Author(s) -
Bergman Perry D.,
Koppel Lowell B.
Publication year - 1966
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690120408
Subject(s) - laminar flow , forced convection , tube (container) , mechanics , heat flux , heat transfer coefficient , thermodynamics , heat transfer , convection , convective heat transfer , flux (metallurgy) , chemistry , concentric tube heat exchanger , materials science , physics , composite material , organic chemistry
Heat transfer from a circular tube to a contained gas in laminar forced convection was studied dimensionally and experimentally. The boundary condition of uniform heat flux was physically achieved, and the experiments were conducted in a statistically designed pattern. The dimensional analysis, based upon the principle of corresponding states, and more general than any hitherto proposed, indicated four independent variables in this experiment. Of these, only bulk velocity showed a statistically significant effect in the region studied: a reduction in heat transfer coefficient with decreasing bulk velocity. No existing theories could explain this effect.