Turbulent Reacting Flows and Supersonic Combustion.

Abstract

An experimental and computational investigation of supersonic combustion flows is in progress. The principal objective of the research is to gain a more fundamental understanding of mixing and chemical reaction in supersonic flows. The research effort comprises three inter-related elements: 1) an experimental study of mixing and combustion in a supersonic plane mixing layer; 2) development of laser-induced fluorescence techniques for time-resolved two-dimensional imaging of species concentration, temperature, velocity and pressure; and, 3) numerical simulations of compressible reacting flows. The design of the supersonic plane mixing layer was completed and the high-pressure gas storage system was installed. The pulsed lasers and camera systems, to be used for two-dimension flow field imaging, were installed and initial performance evaluations are in progress. This work has focussed on development of appropriate numerical methods for performing full-turbulence simulations of high-speed compressible flows and on the application of these methods to temporally and spatially developing compressible mixing layers. The effort to date has identified several promising numerical methods for compressible flow problems. In addition, a code was developed for compressible mixing layers, and initial simulation using this code shows interesting features, such as imbedded shock waves, in high-speed mixing layers. Keywords: Turbulent reacting flow, Laser diagnostics, Computational fluid dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1987
Accession Number
ADA189690

Entities

People

  • C. T. Bowman
  • M. G. Mungal
  • Ronald Kenneth Hanson
  • William C. Reynolds

Organizations

  • Stanford University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Combustion
  • Compressible Flow
  • Computational Fluid Dynamics
  • Fluid Dynamics
  • Fluid Flow
  • Hydrodynamics
  • Laser Induced Fluorescence
  • Lasers
  • Mach Number
  • Measurement
  • Mechanical Engineering
  • Numerical Analysis
  • Physics Laboratories
  • Reynolds Number
  • Test Facilities
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Mechanics and Fluid Dynamics.
  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Hypersonics