Analysis of vibrational nonequilibrium of gas phase in gasparticle nozzle flows
Abstract
A numerical study of the simultaneous relaxation of phase nonequilibrium and vibrational nonequilibrium of the gas phase in gasparticle nozzle flows is presented. The onedimensional unsteady governing equations are solved using a timemarching finitedifference technique. A computer program is developed which gives steadystate solutions starting from the assumed initial value distributions for the flow field parameters. The steadystate results are presented in the form of graphs for contour and hyperbolic nozzles. It is shown that the velocity and temperature slips between the gas and particle phases at low loading ratios increase with the increase of the particle size. The flow becomes near equilibrium for particle diameters in the range below 2 microns.
 Publication:

Aeronautical Society India Journal
 Pub Date:
 August 1990
 Bibcode:
 1990AeSIJ..42..229R
 Keywords:

 Gas Flow;
 Nonequilibrium Flow;
 Nozzle Flow;
 Two Phase Flow;
 Finite Difference Theory;
 Particle Size Distribution;
 Temperature Distribution;
 Time Marching;
 Unsteady Flow;
 Fluid Mechanics and Heat Transfer