Numerical comparison between a differential and an integral approach in MHD simulations of electromagnetic railgun plasma armatures

Author

Cardelli, Ermanno ; Esposito, Nunzio ; Huerta, Manuel A.

Author_Institution

Istituto di Energetica, Perugia Univ., Italy

Volume

33

Issue

1

fYear

1997

fDate

1/1/1997 12:00:00 AM

Firstpage

219

Lastpage

224

Abstract

In this paper an integral approach for the analysis and the numerical simulation of the plasma armatures operating in rail launchers is tested by comparison with a differential approach. After a brief recall of the main theoretical and numerical aspects of the two approaches, a benchmark problem is presented and analyzed. The comparison between the results obtained confirms the validity and the effectiveness of both methods. Moreover, possible advantages or drawbacks of the computer codes implementing the two approaches are discussed

Keywords

digital simulation; equivalent circuits; integral equations; plasma applications; plasma magnetohydrodynamics; plasma simulation; railguns; MHD simulations; benchmark problem; computer codes; electromagnetic railgun plasma armatures; numerical simulation; rail launchers; Acceleration; Equations; Magnetic fields; Magnetohydrodynamics; Plasma accelerators; Plasma density; Plasma properties; Plasma simulation; Plasma transport processes; Rails;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.559958

Filename

559958