Combining electrodynamic and reaction accelerations in a railgun

Autor:	A. D. Lebedev, G. V. Tkachenko, B. A. Uryukov
Rok vydání:	2015
Předmět:	Jet (fluid) animal structures Materials science Nozzle Evaporation rate Electric breakdown General Engineering Thrust Plasma Mechanics Condensed Matter Physics Railgun Classical mechanics Volume (thermodynamics)
Zdroj:	High Temperature. 53:771-774
ISSN:	1608-3156 0018-151X
DOI:	10.1134/s0018151x15050211
Popis:	The parameters of the plasma of a high-current discharge in a restricted volume (discharge chamber) of a body moving in an electrodynamic accelerator (railgun) with plasma ejection through the nozzles are studied theoretically. A jet ejection scheme that eliminates the possibility of electric breakdown between the rails behind the body is proposed. It is demonstrated computationally that the jet efflux has a significant effect on the pressure in the discharge chamber. The reaction component of the thrust turned out to be reasonably large. At the same time, the plasma temperature in the discharge chamber and the material evaporation rate are high and may lead to destruction of the chamber.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0cad9880978389e8503c95abab9b8b46 https://doi.org/10.1134/s0018151x15050211 Zobrazit plný text záznamu Plný text ve formátu PDF