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

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)

Document Details

Document Type
Technical Report
Publication Date
Jun 07, 1962
Accession Number
AD0278534

Entities

People

  • H. Mirels
  • P.m. Chung
  • S.w. Liu

Tags

DTIC Thesaurus Topics

  • Axisymmetric
  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Discontinuities
  • Equations
  • Flow
  • Heat Transfer
  • High Temperature
  • Integral Equations
  • Integrals
  • Layers
  • Mathematics
  • Two Dimensional

Readers

  • Combustion science or combustion engineering.
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flight