MHD simulation of high-current subsonic vacuum arc under different distributed axial magnetic fields |
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Authors: | Lijun Wang Shenli Jia Zongqian Shi Ling Zhang |
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Affiliation: | State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China |
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Abstract: | Based on two-temperature magnetic hydrodynamic (MHD) model, the influence of saddle-shaped distributed axial magnetic field (AMF, linearly increases along radial position) and bell-shaped distributed AMF (linearly decreases along radial position) on plasma loss and heat flux density to anode in subsonic high-current vacuum arc (HCVA) is simulated and analyzed. According to the simulation results, the saddle-shaped AMF can more effectively inhibit plasma loss from arc column than that of bell-shaped AMF. Comparisons between simulation results and experimental results further verify the correctness of model and simulation. |
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Keywords: | High-current vacuum arc Different distributed AMFs Simulation |
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