TRIMIX: A Vorticity-Stream Function Approach to Calculating Three- Dimensional Mixing for Viscous, Parabolic Flows

Abstract

A 3D Computer code (TRIMIX) has been developed to predict the influence of axial vorticity and diffusional velocity model on the rate of mixing between a primary flow and an injected secondary flow. Computational results are presented for the gain and iodine dissociation in an oxygen/iodine laser and compared with results obtained using the 1D premixed approximation. The premixed model significantly underpredicts laser performance; and the binary diffusion model and the zero vorticity approximation both lead to large error in the predicted gain. (jhd)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1990
Accession Number
ADA225817

Entities

People

  • Peter G. Crowell

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Chemical Lasers
  • Chemical Reactions
  • Coefficients
  • Computational Fluid Dynamics
  • Equations
  • Experimental Data
  • Flow
  • Fluid Dynamics
  • Molecular Weight
  • Numerical Analysis
  • Pressure Distribution
  • Pressure Gradients
  • Secondary Flow
  • Three Dimensional
  • Trajectories
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Computational Modeling and Simulation
  • Fluid Dynamics.

Technology Areas

  • Directed Energy