THE EFFECT OF VARIABLE TRANSPORT PROPERTIES ON A DISSOCIATED BOUNDARY LAYER WITH SURFACE REACTION

A study is made of the alteration in surface heat transfer and in the profiles of the flow variables associated with several descriptions of the transport properties of a dissociating gas. A boundary layer of the similar type is considered; a reasonably accurate description of the viscosity, conduct...

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Bibliographic Details
Main Authors: Janowitz,Gerald S, Libby,Paul A
Format: Report
Language:English
Subjects:
BOUNDARY LAYER
CONDUCTIVITY
DIFFUSION
EQUATIONS
HEAT TRANSFER
HIGH ALTITUDE
HYPERSONIC FLIGHT
HYPERSONIC FLOW
LAMINAR BOUNDARY LAYER
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSPORT PROPERTIES
VISCOSITY
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Summary:A study is made of the alteration in surface heat transfer and in the profiles of the flow variables associated with several descriptions of the transport properties of a dissociating gas. A boundary layer of the similar type is considered; a reasonably accurate description of the viscosity, conductivity and diffusivity of a mixture of atoms and molecules is employed along with several approximate descriptions which have been employed in the past. Numerical examples corresponding to high altitude hypersonic flight are considered and indicate that alterations of heat transfer of up to 60% and of the profiles of possible significance can occur depending on the description of the transport properties employed. (Author)