Error Estimation for Three Turbulence Models: Incompressible Flow

Abstract

In order to facilitate the application of Computational Fluid Dynamics (CFD) tools by aerodynamic designers, an assessment of error was made for the Menter Shear Stress Transport (SST), Spalart-Allmaras, and Nichols-Nelson Hybrid (RANS/LES) SST turbulence models. The assessment was made for incompressible flow over a smooth flat plate of unit length. Correlations of the error in drag coefficient with initial grid point spacing, expressed in terms of y+, were discovered for each model. It was found that the correlations were nonlinear and could be expressed in terms of the sine function.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2008
Accession Number
ADA476651

Entities

People

  • Milton F. Vaughn Jr.

Organizations

  • United States Army Research, Development and Engineering Command

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Cell Size
  • Computational Fluid Dynamics
  • Computational Science
  • Engineering
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Mechanical Engineering
  • Mechanical Properties
  • Reynolds Number
  • Security
  • Shear Stresses
  • Skin Friction
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Engineering
  • Physics

Readers

  • Approximation Theory.
  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.

Technology Areas

  • Space