Numerical Simulation Of Transmission And Convergence Process Of Z-pinch

In recent years, with the study of the Z pinch device technology rapid development,as one of the most important part of "Z" device of pulse power vacuum magnetic insulation transmission device is the focus of researchers focused on a transmission line.Given the magnetic insulated transmission line with complex structure, the working process of the preparation time is long, energy consumption, and perhaps in the process of experiment because the interelectrode discharge damage to the device. Magnetic insulated transmission line at the same time, the basic theory for nonlinear theory, using the theory of traditional physics calculation is difficult to show a variety of physical phenomena. If using numerical simulation, obtain important technical parameters,would appear to be an analytical experiment process of physical phenomenon, reduce the blindness of the experiment, shorten the construction period of the device, and cost savings. Therefore, for research in the process of magnetic insulated transmission line,there is necessity for numerical simulation. Magnetic insulated transmission line is presented in this paper, on the basis of theoretical understanding, on the two different types of transmission line circuit simulation and particle simulation, and comparison and combination, and verify its feasibility and correctness. The concrete content includes the following several parts:First, this paper introduces the forming principle of a magnetic insulated transmission line, the basic configuration and classification. Understand the basic principle of magnetic insulated transmission line analysis. This paper introduces the circuit simulation and particle simulation software CHIPIC. The PIC at the same time this paper expounds in a simple parallel algorithm.Secondly, using the theory of laminar flow analysis of the influence of load on the load limiting MITL transmission efficiency, analysis of the input voltage, load, and the relationship between the key parameters such as effective current. Contrast under the condition of different voltage and load transfer efficiency, provide reference for numerical simulation parameters selection. "Flash ii to make use of CHIPIC particle simulation, and compared with circuit simulation and experiments, and verifies the correctness of CHIPIC.Again, was studied in magnetic particle simulation, of the insulation for voltagefeed-in there may be insufficient place, add circuit boundary formation self-consistent voltage pulse signal, conical MITL with 10 LTD is using three dimensional particle simulation of CHIPIC, implement circuit simulation combined with PIC. And compared with memory circuit simulation and validation of the proposed scheme can implement and accuracy.Finally, studies the basic four layers of circular cone MITL configurations.Analyzed the impedance matching of each part of the Z pinch, such as magnetic insulation current and voltage, load and minimum the relationship between the key parameter. Based on the size of the design, selected the appropriate electrical parameters,using CHIPIC the structural convergence of the center of the part was simulated, the convergence of observation in the process of the simulation of different layers of the electron trajectory, and calculate the transmission efficiency of the whole transmission process. On the basis of simulation research on center confluence area, the four layers of circular cone MITL devices are an integral part of the analysis. In CHIPIC software, on the basis of using the method of parallel computing, four layers of gear transmission and the confluence of circular cone MITL the numerical simulation of the whole. Simulated by different position of the current, because each layer of the anode current magnetic insulation layer is greater than the MITL minimum current, and the simulation results show the whole device has the very high transmission efficiency. Simulation results with experimental results for the mutual authentication, are in good agreement. After these work for further research provides a guarantee.