Title :
MHD Simulations of a Moving Arc in SF6 Gas
Author :
Kosse, S. ; Wendt, M. ; Uhrlandt, D. ; Weltmann, K.-D. ; Franck, Ch.
Author_Institution :
Inst. for Low-Temperature Plasma Phys., Greifswald
Abstract :
Summary form only given. Arcs moving due to Lorentz forces in gases in the range from normal to high pressure are used in several technical applications. A time-dependent 3D simulation solving the MHD equation system is applied here to study the behavior of a moving high-pressure arc in more detail. As an example, an arc in SF6 gas at 3 bar moving on parallel rail electrodes due to own magnetic field is analyzed. Thermal equilibrium is assumed. Recalculated data for radiation absorption and composition in SF6 are applied. The thermodynamic properties have been determined by self-consistent kinetic models. The arc model has been implemented into a commercial fluid dynamics package which solves the Navier-Stokes equations and Maxwell´s equations.
Keywords :
Maxwell equations; Navier-Stokes equations; SF6 insulation; plasma magnetohydrodynamics; thermodynamics; vacuum arcs; Lorentz forces; MHD equation system; Maxwell equations; Navier-Stokes equations; SF; commercial fluid dynamics package; moving high-pressure arc; radiation absorption; thermal equilibrium; thermodynamic properties; Absorption; Electrodes; Equations; Gases; Magnetic analysis; Magnetic fields; Magnetohydrodynamics; Rails; Sulfur hexafluoride; Thermodynamics;
Conference_Titel :
Plasma Science, 2007. ICOPS 2007. IEEE 34th International Conference on
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0915-0
DOI :
10.1109/PPPS.2007.4345961
