Fast Algorithm Development for Large-Eddy Simulation of Circular-Jet Turbulence.

Abstract

This research project deals with the computational fluid dynamic investigation of the turbulent mixing layers of several prototype circular-jet configurations. The predictive research addressed the large-eddy simulation computations for the large-scale motions and the subgrid-scale turbulence models for the small-scale motions in the near field downstream of an axisymmetric nozzle. The initial attention is focused on the single free jet expanding into a quiescent environment, with the emphasis on two-dimensional computations and one-point closure models. The numerical algorithm development has examined the applicability of a variable reduction method, and the simulation of a sustained unsteady motion through weighted combinations of stable and unstable schemes.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1986
Accession Number
ADA181429

Entities

People

  • C. A. Hall
  • J. Burkardt
  • J. S. Peterson
  • L. Krishnamurthy
  • T. A. Porsching

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Computational Fluid Dynamics
  • Computer Programs
  • Differential Equations
  • Energy Transfer
  • Equations
  • Far Field
  • Fluid Dynamics
  • Fluid Flow
  • Hydrodynamics
  • Large Eddy Simulation
  • Mechanical Properties
  • Navier Stokes Equations
  • Physics Laboratories
  • Reynolds Number
  • Turbulence
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

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