CONICAL FLOW PARAMETERS FOR AIR AND NITROGEN IN VIBRATIONAL EQUILIBRIUM
Abstract
The Taylor-Maccoll equation for supersonic flow about cones has been integrated numerically for air and nitrogen in instantaneous vibrational equilibrium (chemical reactions are assumed to be frozen). Free stream Mach numbers from 8 to 20 were used for 300 K free stream temperature. The values of the flow quantities (i.e., velocity components, polar angle, temperature, pressure and density) are given through the shock layer for different values of free stream Mach number and flow deflection angle at the shock. It was found that by non-dimensionalizing some of the flow quantities (temperature, pressure and density) with respect to the changes in their values across the shock layer and by plotting them as functions of the non-dimensional shock layer thickness, that the points for different values of free stream Mach number and cone angle lie along the same curves. This gives an approximate method of obtaining other solutions. The results presented are shown to lie between those of Kopal (translation and rotational degrees of freedom only) and Romig (dissociation and ionization included) as expected.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1962
- Accession Number
- AD0278178
Entities
People
- Paul D. Kelly
Organizations
- Ballistic Research Laboratory