Review of Thermal Plasma Simulation Technique

Abstract

The thermal plasma is widely used for power applications such as circuit breakers, welding, cutting, material processing, waste treatment, and recycling. Transient and three-dimensional simulations have recently been conducted, assisting in the understanding of physical phenomena through new developments in computers and calculation methods. In this review, a thermal plasma simulation technique is described. Specifically, the modeling of a new type of inductively coupled thermal plasma, a radiation transfer analysis of thermal plasma in a gas circuit breaker, and plasma movement of arc welding, DC circuit breakers, electric trains, vacuum circuit breakers, and surface treatment affected by an electromagnetic force are described.

Cathode Spot Velocity of Atmospheric Arc Plasma after Arc Ignition Affected by Self and External Electromagnetic Force between Parallel Electrodes Using 3D Numerical Simulation

“…The cathode, arc plasma and the anode are integrated as one, and the interactions between them are considered and The governing equations in this paper are similar with the authors' previous paper [5][6][7][8], which are discretized by TDMA method [9][10][11] and analyzed by SIMPLER method [12,13]. The details will not be repeated in here.…”

“…η air and η Cu are the viscosities of air and Cu, respectively. The condensation of metal vapor is assumed to occur on the electrode surface when its temperature is less than boiling point as shown in (6).…”

Analysis of Adverse Influence of Metal Vapor to Arc Movement Between Electrodes with External Magnetic Field Applied by Numerical Simulation

“…The governing equations used in this study include: the mass conservation, momentum conservation, energy conservation, current continuity, Maxwell‐Ampere equations, and metal vapor conservation equations [14–17]. These equations were discretized by the finite volume method over the entire calculation area using the tridiagonal matrix algorithm method [18–20].…”

Development and Validation of Integrated High Voltage Gas Circuit Breaker Analysis Code

“…A dualtime stepping method was used with LU-SGS to simulate unsteady flow. After the flux terms and source terms are calculated as residual term R in (11), The left side term can be expressed as (11) by LU decomposition. where ( 7)…”

“…There are also various methods to solve radiative heat transfer. First, there is a semi-empirical model [8] mainly used in Liverpool University, and there are methods to solve direct radiative transfer equation such as DOM [9,10] and P-1 approximation [11]. In the case of the semiempirical model, the heat transfer due to radiation is simulated without calculating the radiation equation.…”