A Two-Equation Turbulence Model for a Dispersed Two-Phased Flow with Variable Density Fluid and Constant Density Particles.

Abstract

A two equation turbulence model has been developed for predicting a dispersed two phase flow with variable density fluid and constant density particles. The two equations describe the conservation of turbulence kinetic energy and its dissipation rate for the fluid. They have been derived rigorously from the momentum equations of the carrier fluid in the two phase flow. Closure of the time mean equations is achieved by modeling the turbulent correlations up to third order. The new model eliminates the need to simulate in an ad hoc manner the effects of the dispersed phase on turbulent structure in situations where the compressibility of the fluid must be taken into account.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1985
Accession Number
ADA170628

Entities

People

  • Gordon C. Yeh
  • Said E. Elghobashi

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Computational Fluid Dynamics
  • Dissipation
  • Energy
  • Energy Transfer
  • Equations
  • Flow
  • Fluid Dynamics
  • Kinetic Energy
  • Momentum
  • Multiphase Flow
  • Reynolds Number
  • Turbulence
  • Turbulent Diffusion
  • Turbulent Mixing
  • Two Phase Flow

Fields of Study

  • Chemistry
  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.