Accession Number:

ADA222934

Title:

A Theoretical Study of Flow Structure and Radiation for Multiphase Turbulent Diffusion Flames

Descriptive Note:

Technical rept. 15 Mar 1989-1 Mar 1990

Corporate Author:

WISCONSIN UNIV-MADISON DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

1990-03-01

Pagination or Media Count:

63.0

Abstract:

The present technical report summarizes the progress made in considering thermal radiation in the analysis of multiphase turbulent flow structure of a halogen gas jet reacts with a liquid metal. The reaction of a halogen gas jet submerged in an alkali liquid metal fuel forms a complex diffusion flame. The flame is turbulent and multiphase in nature and its temperature is relatively high. The purpose of this study is to account for thermal radiation and the radiationturbulent interaction in analyzing such a diffusion flame structure. A method is hereby proposed to consider the turbulence-radiation interaction in the analysis of a multiphase diffusion flame. Application is made to study the reaction of a halogen gas jet submerged in a alkali liquid fuel bath. The analysis makes use of a k-epsilon-g turbulence model, a local homogeneous two-phase model, a chemical equilibrium combustion model, a probabilistic approach and a radiation model compatible with mixture fraction fluctuation. The equilibrium state relationships for instantaneous properties, required for mean scalar property predictions and structure analysis of the reacting jet, have been generated. The energy equation containing the radiative source term has been solved simultaneously with the FAvre-averaged transport equations.

Subject Categories:

  • Thermodynamics
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE