Title :
Electrical and aerodynamic behavior of arc under shock conditions
Author :
Yan, Jiu Dun ; Fang, Michael T C ; Jones, Chris
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
fDate :
10/1/1997 12:00:00 AM
Abstract :
Arc-shock interaction in a supersonic nozzle has been investigated for a current range from 200 to 1500 A and for three pressure ratios. The adverse pressure gradient associated with the shock causes flow separation and a broadening of arc cross section. Compared with the shock position in the absence of the arc, the shock center is moved toward upstream and to a region close to the wall. The shock is no longer plane. The center of the shock is not very sensitive to the current, but the shock strength reduces when the current is increased, V-I characteristics under shock conditions are slightly modified
Keywords :
arcs (electric); flow separation; nozzles; plasma flow; plasma pressure; plasma shock waves; plasma simulation; plasma temperature; supersonic flow; 200 to 1500 A; V-I characteristics; adverse pressure gradient; aerodynamic behavior; arc cross section; arc-shock interaction; arcs; current range; electrical behavior; flow separation; pressure ratios; shock conditions; shock position; shock strength; supersonic nozzle; Acceleration; Aerodynamics; Circuit breakers; Electric shock; Electrons; Equations; Geometry; Orifices; Switchgear; Temperature;
Journal_Title :
Plasma Science, IEEE Transactions on
