Accession Number : ADA190307

Title :   Fundamental Studies on MPD Thrusters.

Descriptive Note : Final progress rept. Apr 85-Dec 86,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Lawless, J L

PDF Url : ADA190307

Report Date : 02 Sep 1987

Pagination or Media Count : 258

Abstract : A theory has been developed which predicts onset and erosion in MPD thrusters. The theory predicts onset currents which are in quantitative agreement with experiment. Erosion rates are predicted for a steady-state hot cathode thruster. This theory is the first to model the viscous and thermal electrode boundary layers in MPD thrusters. Stability criteria for diffuse-mode electrode current conduction have been found. Keywords: Two temperature flow; Electrode plasma interactions, Magnetoplasmadynamic thrusters.

Descriptors :   *THRUSTERS, *PLASMA ENGINES, *MAGNETOHYDRODYNAMICS, AGREEMENTS, BOUNDARY LAYER, CATHODES, ELECTRODES, HIGH TEMPERATURE, INTERACTIONS, PLASMAS(PHYSICS), RATES, STABILITY, STEADY STATE, TEMPERATURE, THERMAL BOUNDARY LAYER, VISCOSITY, PLASMA SHEATHS

Subject Categories : Electric and Ion Propulsion

Distribution Statement : APPROVED FOR PUBLIC RELEASE