Theoretical study of reactive and nonreactive turbulent coaxial jets
Abstract
The hydrodynamic properties and the reaction kinetics of axisymmetric coaxial turbulent jets having steady mean quantities are investigated. From the analysis, limited to free turbulent boundary layer mixing of such jets, it is found that the twoequation model of turbulence is adequate for most nonreactive flows. For the reactive flows, where an allowance must be made for second order correlations of concentration fluctuations in the finite rate chemistry for initially inhomogeneous mixture, an equation similar to the concentration fluctuation equation of a related model is suggested. For diffusion limited reactions, the eddy breakup model based on concentration fluctuations is found satisfactory and simple to use. The theoretical results obtained from these various models are compared with some of the available experimental data.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 August 1976
 Bibcode:
 1976STIN...7629539G
 Keywords:

 Coaxial Flow;
 Jet Flow;
 Turbulent Boundary Layer;
 Turbulent Mixing;
 Chemical Reactions;
 Diffusion;
 Free Flow;
 Hydrodynamics;
 Mathematical Models;
 Reaction Kinetics;
 Fluid Mechanics and Heat Transfer