Numerical Implementation of Surface Catalysis, Reaction, and Sublimation

Abstract

This lecture consists of three parts: 1) quantification of rates of gas-surface interaction, 2) formulation of gas-surface balance conditions, and 3) survey of the gas-surface interaction problems in the entry flights of various planets. The first part reviews the role of surface rates and flow parameters in Goulard's theory, the catalytic rates for Martian entry problem, the reaction rates for oxidation and nitridation of carbon, rough surfaces, and the relationship between forward and reverse surface rates. The second part covers the method of expressing the diffusion flux at wall, derivation of the mass balance condition at wall, and its implementation in the boundary layer and computational-fluid-dynamics formulations. In the third part, a brief survey is made of the gas-surface interaction problems occurring in entry flights into Earth, Mars, Venus, Titan, and outer planets.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2007
Accession Number
ADA476530

Entities

People

  • Chul Park

Organizations

  • KAIST

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Ablation
  • Boundary Layer
  • Carbon Carbon Composites
  • Catalysis
  • Chemical Reaction Properties
  • Chemical Reactions
  • Computational Fluid Dynamics
  • Differential Equations
  • Diffusion Coefficient
  • Fluid Dynamics
  • Gas Surface Interactions
  • Heat Transfer
  • Payload
  • Pyrolysis
  • Silicon Carbide
  • Stagnation Point
  • Vaporization

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Spectroscopy.
  • Systems Analysis and Design