Variational Principle for Optimal Accelerated Neutralized Flow

Fruchtman, A. ; Fisch, N. J.

Princeton University. Plasma Physics Laboratory.

关键词: Energy Absorption;    Variational Methods;    Electrodes;    70 Plasma Physics And Fusion Technology;    Hall Effect;   

DOI  :  10.2172/765154
RP-ID  :  PPPL-3493
RP-ID  :  AC02-76CH03073
RP-ID  :  765154

美国|英语

来源: UNT Digital Library

【 摘 要 】

Minimizing the energy deposited in the electron current in neutralized flows, such as in the Hall thruster, is examined. Modifying the electron current along the channel by inserting emitting electrodes, can enhance the efficiency. By employing variational methods, an optimal electron current distribution is found. The efficiency enhancement due to this effect, however, is shown to be small.