Accession Number : AD0278534

Title :   EFFECT OF DISCONTINUITY OF SURFACE CATALYCITY ON BOUNDARY LAYER FLOW OF DISSOCIATED GAS

Corporate Author : DEPUTY COMMANDER AEROSPACE SYSTEMS INGLEWOOD CALIF

Personal Author(s) : CHUNG,P.M. ; LIU,S.W. ; MIRELS,H.

Report Date : 07 JUN 1962

Pagination or Media Count : 1

Abstract : The catalytic recombination of atoms along a surface with a discontinuous variation of the surface catalycity is studied. The catalycity is considered to have a discrete jump from either zero or infinity to an arbitrarily constant value at a given location. Highly cooled hypersonic boundary layers are considered for general two-dimensional and axisymmetric bodies. Two approaches are used in the study:A Volterra integral equation whic is solved by both a series method and a numerical method and a modified Pohlhausen integral method. The effect of noncatalytic upstream surface on the heat transfer to downstream surface with a finite catalycity is discussed. Also, a method is advanced to increase the sensitivity of a double-surface catalytic gage used for the diagnostics of high temperature experimental facilities. (Author)

Descriptors :   ATOMS, BOUNDARY LAYER, DISSOCIATION, GASES, HYPERSONIC VEHICLES, SURFACES

Distribution Statement : APPROVED FOR PUBLIC RELEASE