DSMC Study of Shock-Detachment Process in Hypersonic Chemically Reacting Flow

Abstract

Hypersonic chemically reacting flow around a wedge in the near-continuum regime was numerically studied by the DSMC method with the main goal of validation of real gas effect models. The influence of vibration-dissociation coupling on the results of numerical simulations was analyzed. To this end, two models of chemical reactions were used in the computations, the total collisional energy model and a vibrationally favored model. The numerical results were compared with the experimental data of Hornung and Smith on the shock-wave stand-off distance in a hypersonic flow around the wedge. Sensitivity of simulation results to chemical reaction rate constants was also estimated.

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Document Details

Document Type
Technical Report
Publication Date
Jul 13, 2005
Accession Number
ADA445987

Entities

People

  • G. N. Markelov
  • M. S. Ivanov
  • S. F. Gimelshein
  • Ye. A. Bondar

Organizations

  • Russian Academy of Sciences

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Applied Mechanics
  • Boundary Layer
  • Chemical Reactions
  • Collisions
  • Computational Science
  • Computations
  • Experimental Data
  • Flow
  • Fluid Dynamics
  • Free Stream
  • Gas Flow
  • Knudsen Number
  • Mach Number
  • Payload
  • Shock Waves
  • Simulations
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Computational Fluid Dynamics (CFD)
  • Molecular Photonics/Laser Physics

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flight
  • Hypersonics - Hypersonic Flow