A Numerical Solution for Temperature Distributions in a Discrete Injection Transpiration-Cooled Nosetip System.

Abstract

An analysis is performed to describe the thermodynamics behavior of 'fin' and fluid components of a transpiration-cooled nosetip system. Partial differential equations governing fin and fluid temperatures are derived and solved numerically to yield time-dependent distributions. Correlations used for the subcooled boiling heat transfer mechanism are found to over-predict the amount of heat removed from the fin in depth. A comparison of temperature distributions indicates that the fluid equation may be considered as steady state with a negligible effect on the solution. The numerical scheme used to solve the governing equations is strongly stable, even when drastic changes in parameters occur. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 20, 1979
Accession Number
ADA073340

Entities

People

  • Ann Karagozian

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Differential Equations
  • Energy
  • Energy Transfer
  • Equations
  • Flow Rate
  • Heat Energy
  • Heat Flux
  • Heat Transfer
  • Mass Flow
  • Steady State
  • Surface Temperature
  • Thermodynamics
  • Two Dimensional
  • Vaporization
  • Vapors

Readers

  • Combustion and Flow Dynamics.
  • Control Systems Engineering.
  • Fluid Mechanics and Fluid Dynamics.