Discharge chamber gas dynamics with moving contact
The arc-quenching discharge chamber filling by working gas is considered at disconnection of contacts. The experimental stand is intended for investigating of arc-quenching processes, erosion of electrodes and degradation of insulating materials in high-current gas breakers. A movable contact is displaced due to the pressure of a supersonic stream of compressed gas. The arc is cooled via transverse gas blowing. For mathematical simulating open package OpenFoam of version 4.1 with the connected library swak4foam was used. Results of calculation of gasdynamics parameters and its comparison with the experimental data are presented at gas pressure in the chamber of 5-7 MPa.