Non-Equilibrium Modeling of Complex Turbulent Flows

Abstract

The non-equilibrium modeling of complex turbulent flows is considered from a theoretical standpoint. Both two-equation models and full second-order closures are considered. Non-equilibrium two-equation models can be obtained via a regularization scheme based on a Pade' approximation. Second-order closures that are extended to non-equilibrium flows are obtained in the same fashion. Applications to rapidly distorted flows - including homogeneous shear flow and homogeneous plane strain turbulence - are considered. The prospects for future research are discussed in detail.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1998
Accession Number
ADA353048

Entities

People

  • Charles G. Speziale

Organizations

  • Boston University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Boundary Layer
  • Computational Fluid Dynamics
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Kinetic Energy
  • Large Eddy Simulation
  • Mechanical Properties
  • Mechanics
  • Physics
  • Reynolds Number
  • Shear Flow
  • Simulations
  • Turbulence
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Mechanics and Fluid Dynamics.
  • Linear Algebra