Accession Number : AD0761492

Title :   Gas Heating and Volume Recombination Effects on Positive Column Equilibria.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Moore,John W.

Report Date : JUN 1973

Pagination or Media Count : 77

Abstract : A three moment model of the positive column is applied to an axisymmetric rare gas discharge at a pressure of 35 Torr and a tube radius of 1 cm. A three species fluid is considered. The ions and electrons are considered as perfect fluids and the background gas is modeled as a viscous, thermally conductive, compressible fluid. The zero'th order equilibrium equations are solved numerically for a model with gas heating and for a model with both gas heating and volume recombination. The results indicate an electron kinetic temperature gradient due to gas heating alone with temperatures of .769 ev at the axis and .497 ev at the wall for a current of 60 ma and a much smaller temperature gradient for lower currents. (Modified author abstract)

Descriptors :   (*GAS DISCHARGES, RECOMBINATION REACTIONS), COMPRESSIBLE FLOW, ELECTRON DENSITY, GAS IONIZATION, GLOW DISCHARGES, DISTRIBUTION FUNCTIONS, COMPUTER PROGRAMMING, THESES

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE