Wenbo CHEN, Zijun LI, Lunjiang CHEN, Jun FENG, Puqiong YANG. Analysis of flow and heat-transfer characteristics of DC-RF hybrid plasma based on turbulence model[J]. NUCLEAR TECHNIQUES, 2023, 46(10): 100501
- NUCLEAR TECHNIQUES
- Vol. 46, Issue 10, 100501 (2023)
Fig. 1. Schematic of the DC-RF hybrid plasma torch structure (a) and grid (b)
Fig. 2. Simulation results of the turbulent model (a) and laminar model (b)
Fig. 3. Spatial distribution contours of the temperature under different DC arc currents
Fig. 4. Spatial distributions of the flow field under different DC arc currents
Fig. 5. Distributions of the plasma velocity along the axis direction under different DC arc currents
Fig. 6. Calculated distributions of the temperature and flow field with plasma gas rate QR = 30 L·min-1 (a) and 5 L·min-1 (b)
Fig. 7. Distributions of axial temperature along the outer torch wall with different QR values
Fig. 8. Distributions of the plasma velocity along the axis direction with different QR values
Fig. 9. Calculated distributions of the temperature and flow field with cooling gas rate QC = 92 L·min-1
Fig. 10. Distributions of the temperature along the outer torch wall in the axis direction with different QC values
Fig. 11. Distributions of the plasma velocity along the axis direction with different QC values
Fig. 12. Calculated distributions of the temperature and flow field with coil current IRF = 295 A (a) and 215 A (b)
Fig. 13. Distributions of axial temperature along the outer torch wall with different IRF values
Fig. 14. Distributions of the plasma velocity along the axis direction with different IRF values
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