Numerical Analysis of Recirculating Ducted Flows

Abstract

A numerical solution procedure for ducted, recirculating flows has been developed and applied to predict both turbulent pipe flow and ducted, coaxial jet mixing with recirculation. The solution procedure is based on a decay-function, finite-difference formulation applied to a system of governing equations based on stream functions and vorticity. The vorticity governing equation is complete in that no source terms have been deleted or neglected in its derivation from the Navier-Stokes equations. Boundary values for all dependent variables are defined by physically realistic conditions. Solutions obtained indicate that the accuracy of the solution procedure depends on having an accurate turbulent viscosity model.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1978
Accession Number
ADA062945

Entities

People

  • R. J. Schulz

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Chemical Reactions
  • Difference Equations
  • Differential Equations
  • Engineering
  • Equations
  • Flow
  • Fluid Dynamics
  • Kinetic Energy
  • Navier Stokes Equations
  • Numerical Analysis
  • Pipe Flow
  • Reynolds Number
  • Turbulent Flow
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)