Scramjet Isolators

Abstract

Scramjet operation in the lower hypersonic regime between Mach 4 and 8 is characterized by what is called dual-mode combustion. In this situation disturbances generated by heat-release in the combustor can propagate upstream of fuel injection to affect the operation of the inlet. The method use to alleviate this problem is installation of a short duct between the inlet and the combustor known as an isolator. This article describes the flow phenomenon that exits in the isolator in these situations and presents some of the current methodologies and analysis techniques for scramjet isolator design.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2010
Accession Number
ADA581901

Entities

People

  • Michael K. Smart

Organizations

  • University of Queensland

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Combustion
  • Combustors
  • Diameters
  • Dual Mode
  • Engines
  • Friction
  • Fuel Injection
  • Heat Loss
  • Heat Of Combustion
  • Mach Number
  • Pressure Distribution
  • Pressure Gradients
  • Skin Friction
  • Specific Heat
  • Supersonic Combustion Ramjet Engines

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Structural Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow