Hongyu Dai, Jingrun Guo, Bin Yu, Hao Shen, Li Li. Effect of high-current pulsed arc on the evaporation characteristics of graphite electrode[J]. High Power Laser and Particle Beams, 2022, 34(7): 075003
- High Power Laser and Particle Beams
- Vol. 34, Issue 7, 075003 (2022)
Fig. 1. Schematic diagram of graphite electrode position in spark gap switch
Fig. 2. Computational region of MHD model
Fig. 3. Five typical switching pulse discharge current waveforms
Fig. 4. Model calculation results
Fig. 5. Calculation of heat flux on cathode and anode surface
Fig. 6. Heat energy distribution of cathode and anode
Fig. 7. Calculation results of anode temperature
Fig. 8. Macro and micro photos of graphite electrode surface ablation
Fig. 9. Mass fraction of graphite vapor on anode surface with time
Fig. 10. Variation of evaporation quality of graphite with time
Fig. 11. Variation of cathode and anode mass with discharge times
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Table 1. Setting of boundary conditions of MHD model
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