Anisotropy in Reacting Compressible Turbulent Shear Flow

Abstract

The structure of reacting compressible homogeneous turbulent shear flow is examined via data generated by direct numerical simulations (DNS). The reaction is modeled as one-step, exothermic, irreversible, and Arrhenius type. The effects of reaction are studied by decomposing the velocity field into its solenoidal and dilatational parts. The heat of reaction significantly enhances the dilatational kinetic energy, while it reduces its solenoidal counterpart. The solenoidal and dilatational large scales (kinetic energy) and small scales (viscous dissipation) anisotropies are investigated for cases with different initial turbulent Mach numbers and Reynolds numbers.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013682

Entities

People

  • C. K. Madnia
  • D. Livescu

Organizations

  • University at Buffalo

Tags

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Boundary Layer
  • Chemical Reaction Properties
  • Chemical Reactions
  • Decomposition
  • Energy
  • Energy Levels
  • Equations
  • Flow
  • Kinetic Energy
  • Mach Number
  • Power Spectra
  • Reynolds Number
  • Shear Flow
  • Simulations
  • Stratified Fluids
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Fluid Mechanics and Fluid Dynamics.