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Heat Transfer to a Thin Solid Combustible in Flame Spreading at MicrogravityThe heat transfer rate to a thin solid combustible from an attached diffusion flame, spreading across the surface of the combustible in a quiescent, microgravity environment, was determined from measurements made in the drop tower facility at NASA-Lewis Research Center. With first-order Arrhenius pyrolysis kinetics, the solid-phase mass and energy equations along with the measured spread rate and surface temperature profiles were used to calculate the net heat flux to the surface. Results of the measurements are compared to the numerical solution of the complete set of coupled differential equations that describes the temperature, species, and velocity fields in the gas and solid phases. The theory and experiment agree on the major qualitative features of the heat transfer. Some fundamental differences are attributed to the neglect of radiation in the theoretical model.
Document ID
19910066826
Document Type
Reprint (Version printed in journal)
Authors
Bhattacharjee, S. (San Diego State University CA, United States)
Altenkirch, R. A. (Mississippi State University Mississippi State, United States)
Olson, S. L. (San Diego State Univ. San Diego, CA, United States)
Sotos, R. G. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 29, 2013
Publication Date
August 1, 1991
Publication Information
Publication: ASME, Transactions, Journal of Heat Transfer
Volume: 113
ISSN: 0022-1481
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Funding Number(s)
CONTRACT_GRANT: NAS3-23901
Distribution Limits
Public
Copyright
Other