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Chemically frozen multicomponent boundary layer theory of salt and/or ash deposition rates from combustion gasesThere is increased interest in, and concern about, deposition and corrosion phenomena in combustion systems containing inorganic condensible vapors and particles (salts, ash). To meet the need for a computationally tractable deposition rate theory general enough to embrace multielement/component situations of current and future gas turbine and magnetogasdynamic interest, a multicomponent chemically 'frozen' boundary layer (CFBL) deposition theory is presented and its applicability to the special case of Na2SO4 deposition from seeded laboratory burner combustion products is demonstrated. The coupled effects of Fick (concentration) diffusion and Soret (thermal) diffusion are included, along with explicit corrections for effects of variable properties and free stream turbulence. The present formulation is sufficiently general to include the transport of particles provided they are small enough to be formally treated as heavy molecules. Quantitative criteria developed to delineate the domain of validity of CFBL-rate theory suggest considerable practical promise for the present framework, which is characterized by relatively modest demands for new input information and computer time.
Document ID
19790066899
Document Type
Reprint (Version printed in journal)
Authors
Rosner, D. E.
(Yale Univ. New Haven, CT, United States)
Chen, B.-K.
(Yale University New Haven, Conn., United States)
Fryburg, G. C.
(Yale Univ. New Haven, CT, United States)
Kohl, F. J.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Publication Information
Publication: Combustion Science and Technology
Volume: 20
Issue: 3-4,
Subject Category
Inorganic And Physical Chemistry
Accession Number
79A50912
Funding Number(s)
CONTRACT_GRANT: NSG-3107
Distribution Limits
Public
Copyright
Other

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