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Heat and momentum transfer in laminar flow: Helium initially at plasma temperatures
Author(s) -
Wethern R. J.,
Brodkey Robert S.
Publication year - 1963
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.690090111
Subject(s) - laminar flow , helium , heat transfer , mechanics , flow (mathematics) , thermodynamics , momentum (technical analysis) , plasma , laminar flow reactor , materials science , chemistry , physics , atomic physics , nuclear physics , open channel flow , finance , economics
A study was made of the laminar flow of monatomic gases. It was found that the Graetz type of correlation holds sufficientiy well for prediction of heat transfer coefficients for the gases. Equations are given for a complete analysis of the various sources of error, an approximate and rapid means of estimating the friction factor, and an approximate but rapid means of estimating the heat transfer coefficient. It appears that the temperature estimation is by far the major source of error, because of insufficiently accurate voltage and current measurements and questions concerning the heat loss term. (P.C.H.)