MHD Segmentation Welding Atmospheric modeling Bevel angle Disjoncteur basse tension Low voltage circuit breaker SF 6 Temperature Experiment Vacuum circuit breaker Single-walled carbon nanotubes SWCN Cathodes Arc discharge Ar-CO2 Electric arc CFD 2D model 5270Kz Cameras Plasma Shock wave Temperature measurement Cascaded Nanotubes Chemical compositions Thermal plasma Air plasma Electric arcs Equations Découpe plasma Plasma composition Carbon nanotubes Acoustic waves Arc électrique Allumage par étincelle Constant mass density Plasma cutting Plasma kernel Metal vapour Arc voltage measurement Bubble expansion Modélisation Arc simulation Chute de tension 5250Nr Spectroscopy Optical emission spectroscopy Yarn Chemical analysis Air-CH4 Numerical simulation CH 4 Carbon GMAW Constant pressure Transient state Weld pool 5250Dg Arc movement Low-voltage circuit breaker Arc voltage Air/méthane 5277Fv Arc Electrique Arc chamber Carbon 0 CO Arc discharges Plasmas Tungsten Chemical composition Hexamethyldisiloxane HMDSO Application domain Caractérisation Atom arrangement LVCB Spark Geometry Voltage drop Expérience 5275Hn Electrodes 3D model Atmospheric temperature Air-CH 4 Heating Plasma temperature Argon Subsonic regime 0D model Allumage Anodes Aircraft electronics Simulation Arc splitting Arc motion Anode erosion Chemical kinetic Plasma arc cutting