Electrostatic Precipitators Of Negative Corona Discharge Process Of The Numerical Simulation

A mass of coal was burned in our country every year. It brought the air contamination badly. Electrostatic precipitator was used and reduced the degree of air contamination. The proceeding of the gas discharge is nonlinear, we got the exact solution is very difficulty. So we solve the question depending on the numeric method. That is the main content. The paper analyses the operating principle of the electrostatic precipitator, describes the physical proceeding of the gas discharge, get a nonlinear wave equation of the negative corona pulse discharge. Electrostatic precipitator has different configuration. The code provides the auto-cell algorithm that is important. In other words, however the simulation area changed, we need not rewrite the codes. It is a very difficulty question. Corresponding to these questions, the paper introduces the basic characteristic of the R-Function. We combine the R-Function and FDTD, the algorithm of alterable boundary geometry configuration is explained, and the kernel detail of the algorithm is elucidated. Finally, the paper presents the simulation results, the distribution of ? in the simulation area at various time, the change of the electric field on the two boundaries, the ions density distribution in the simulation area at 20 μs, and the V-I characteristic curve. These results accord with the real gas discharge experiment's data. So the codes has important reference value.