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Convective stability in the presence of a catalytic chemical reaction. Part I. Stationary instability
Author(s) -
Wankat P. C.,
Schowalter W. R.
Publication year - 1971
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.690170614
Subject(s) - exothermic reaction , endothermic process , lewis number , mass transfer , instability , chemistry , convection , plane (geometry) , thermodynamics , coupling (piping) , catalysis , chemical reaction , heat transfer , mechanics , materials science , physics , geometry , chromatography , organic chemistry , mathematics , adsorption , metallurgy
A linear analysis of hydrodynamic stability has been applied to a problem in which a fluid mixture is contained between two horizontal planes. One species diffuses to the lower plane where it is destroyed by a rapid exothermic or endothermic catalytic reaction. Results show that important coupling takes place between thermal and concentration fields. This coupling gives rise to unusual stabilizing or destabilizing effects, depending upon the value of Lewis number. Several examples are discussed. It is also shown how the results can be applied to other problems involving heat and mass transfer.