Accession Number : ADA185605

Title :   Performance-Limiting Factors in MPD Thrusters.

Descriptive Note : Final rept. 15 Dec 84-30 Apr 86,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s) : Martinez-Sanchez, Manuel

PDF Url : ADA185605

Report Date : 17 Apr 1987

Pagination or Media Count : 57

Abstract : The following results: (a) A theoretical formulation of the flow of plasma in a variable area accelerator under conditions where the voltage is dominated by the back e.m.f., showing novel features akin to those found in ordinary gas dynamics, but with the magnetoacoustic speed playing the controlling role. (b) A numerical model of an axisymmetric MPD thruster of realistic geometry with fully coupled gas and electrodynamic effects, but limited by numerical difficulties to conditions well below onset. (c) design and construction of test channels to investigate the effects predicted by the above theories, and (d) Generation of a limited computerized MPD data predicted by the above theories, and (e) Generation of a limited computerized MPD data base. Keywords: Magnetoplasmadynamic thruster; Electric propulsion.

Descriptors :   *THRUSTERS, *ARC JET ENGINES, COUPLING(INTERACTION), DATA BASES, ELECTRIC PROPULSION, ELECTRODYNAMICS, FORMULATIONS, GAS DYNAMICS, GASES, LIMITATIONS, MATHEMATICAL MODELS, PERFORMANCE(ENGINEERING), VARIABLES, MAGNETOHYDRODYNAMICS

Subject Categories : Electric and Ion Propulsion

Distribution Statement : APPROVED FOR PUBLIC RELEASE