A theoretical investigation of highspeed axisymmetric turbulent mixing layers with large temperature differences
Abstract
A twoparameter integral method was developed for predicting the meanflow characteristics of high speed axisymmetric turbulent mixing layers with large temperature differences. Results are presented graphically and in tabular form for such quantities as spreading rate, entrainment velocity, potentialcore length, and velocity along the dividing streamline. These results are for the case of a jet issuing into a quiescent medium; a range of jet Mach numbers from 0 to 5 is taken. For each Mach number results are presented corresponding to values of the temperature ratio across the mixing layer ranging from 0 to infinity. On the whole the available experimental data agree well with the theoretical predictions. Results for the case where the jet issues into a moving stream are not presented graphically or in tabular form, but approximate analytical formulae are given whereby most of the quantities of interest may be determined.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 1976
 Bibcode:
 1976STIN...7631482C
 Keywords:

 Axisymmetric Flow;
 Mixing Layers (Fluids);
 Shear Layers;
 Temperature Gradients;
 Turbulent Jets;
 Turbulent Mixing;
 Eddy Viscosity;
 Flow Equations;
 Flow Velocity;
 Integral Equations;
 Mixing Length Flow Theory;
 Shear Flow;
 Supersonic Flow;
 Fluid Mechanics and Heat Transfer