An Analysis of Non-Constant Area Heat Addition Due to Combustion in a Supersonic Air-Stream.

Abstract

A condition critical to the occurrence of ignition in a ducted supersonic stream has been proposed. By utilizing this concept as a further boundary condition, a new approach to the solution of the gas dynamic equations relevant to combustion in a ducted supersonic stream has been made. This approach involves the duct characteristic with which to describe the combustion process. For engineering, a duct law has been found to satisfy the system of equations; it can be considered to be the additional equation required to close the problem. The above temperature-area relationship, which established the critical Mach number at which thermal choking occurs as unity, can be used as an alternative to the Crocco pressure-area relationship which predicts a non-unity critical Mach number.

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1975
Accession Number
ADA017685

Entities

People

  • Roy A. Cookson

Organizations

  • Cranfield University

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Chemical Reactions
  • Combustion
  • Engineering
  • Equations
  • Ignition
  • Mach Number

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fluid Dynamics.
  • Life Cycle Cost Analysis

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow