Effect of T (parallel) greater than T (perpendicular) on rotational distribution of N2 in Ar free jet
Abstract
The effect of anisotropic translational temperature T(parallel)T(perpendicular) on the rotational distribution, temperature, and collision number of N2 in the Ar free jet is investigated at the lower density level P sub od=15 Torr mm using the ellipsoidal velocity distribution and the rotational transition cross section of the power law. The effect of T(parallel)T(perpendicular) is appreciable. The rotational distribution, which is a non-Boltzmann distribution with overpopulation of the higher rotational levels, and temperature for T(parallel)T(perpendicular)=T sub i lie slightly above those for isotropic temperature T(parallel)=T(perpendicular)=T sub i (isentropic) and appreciably below those for T(parallel)=T perpendicular T sub i.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1981
- Bibcode:
- 1981STIN...8222457K
- Keywords:
-
- Anisotropic Media;
- Argon;
- Free Jets;
- Nitrogen Atoms;
- Temperature Distribution;
- Vortices;
- Atomic Collisions;
- Boltzmann Distribution;
- Ellipsoids;
- Velocity Distribution;
- Fluid Mechanics and Heat Transfer