Second Moment Closure Modeling of Complex Turbulent Flows

Abstract

Turbulence subject to unsteady forcing can exhibit novel features that cannot be explained using the well-known steady-turbulence paradigm. Modeling and prediction of such statistically unsteady flows are important in many practical AFOSR applications: turbine flows, wake-flows with vortex shedding, etc. Further, many flow control strategies depend upon the knowledge of unsteady turbulence dynamics to achieve the desired objectives. However, our understanding of unsteadily-forced turbulence dynamics or our ability to predict them is inadequate.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 2007
Accession Number
ADA482166

Entities

People

  • Sharath S. Girimaji

Organizations

  • Texas A&M University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Boundary Layer
  • Computational Fluid Dynamics
  • Dynamics
  • Energy Transfer
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Intermediate Frequencies
  • Mechanics
  • Periodic Variations
  • Physics
  • Stratified Fluids
  • Turbulence
  • Turbulent Flow
  • Unsteady Flow

Fields of Study

  • Physics

Readers

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