Numerical Simulation Of Plasma Jet

The research of plasma jet is the important department of theoretical research in plasma ignition system. The plasma jet which produces by the plasma generator is a quite complex process, so it is very difficult to obtain information by experimental studies, and must obtain more information through the numerical simulation. Those various parameter such as pressure, density, temperature and speed which obtains through the numerical simulation in this thesis, which has the important significance to study the mutual function between the plasma jet and the coal granule.This thesis includes the following several main points:(1)Based on the calculation hydrodynamics, the two dimensional/symmetry mathematics model was devalued, the flow field governing equation has determined in the plasma jet;(2)Based on the idea of Chang's space-time Conservation Element and Solution Element (CE/SE) method, a new approach of CE/SE is deduced for solving 2D Euler equations on meshes and quads;(3)The jet filed was simulated by using CE/SE method, varieties of pressure, temperature, density and velocities are analyzed;(4)Compared different inlet temperature, pressure and diameter jet flow characteristic;(5)Establishes the computer program with the Fortran language, utilize Matlab and Origin to deal with the data, and drawing charts.