High Power Laser and Particle Beams, Volume. 33, Issue 6, 065011(2021)
Numerical study of atmospheric pressure Ar plasma jets under different electrode structures
Figures & Tables(15)
Fig. 1. Discharge device and simulation domain used in our calculation
Fig. 3. Temporal and spatial evolution of electron density for the first and the second electrode device
Fig. 4. Radial and axial electron density evolutions for different electrode device
Fig. 5. Evolution of the axial and radial electric field in the ionization head when the ionization wave propagates inside the tube for different electrode device
Fig. 6. Evolution of the axial and radial electric field in the ionization head when the ionization wave propagates outside the tube for different electrode device
Fig. 7. Spatial distribution of reactive species density at 50 ns for two electrode devices
Fig. 8. Evolution reactive species density on the axis for two electrode devices
Fig. 9. Temporal-spatial evolution of electron density for bare needle electrode device
Fig. 10. Axial electron density evolution for the bare needle electrode device
Fig. 11. Evolution of the electric field during the propagation of the ionization wave under the bare needle electrode device
Fig. 12. Axial plasma potential distribution at different moments for the bare needle electrode (solid line) and needle electrode with insulation dielectric (dashed line)
Table 1. [in Chinese]
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boundary velocity condition background species condition Note: ${u_{{r}}}$ ${u_{ {\textit{z}} } }$ ${{n}}$ BC BJ,CI,IH,HD,GF DE KG EF 0.1 MPa
Table 2. [in Chinese]
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boundary electrostatic condition species condition Note: “ring” is the high voltage electrode. BC BJ， CIHD Eq.(13) Eq.(8)， (9)， (10)， (11) KG AK V … GF 0 —— EF 0 ring 0 ——
Table 3. [in Chinese]
View tableView in ArticleTable 3. [in Chinese]
index reaction rate coefficients threshold energy/eV reference 1 e＋Ar→e＋Ar BOLSIG＋ / [ 17 ]2 e＋Ar→e＋Ar* BOLSIG＋ 11.5 [ 17 ]3 e＋Ar→2e＋Ar+ BOLSIG＋ 15.8 [ 17 ]4 e＋N2→2e＋N2+ BOLSIG＋ 15.58 [ 17 ]5 e＋N2→e＋2N BOLSIG＋ 13 [ 17 ]6 e＋N2→e＋N2(C3π) BOLSIG＋ 11.03 [ 17 ]7 e＋O2→2e＋O2+ BOLSIG＋ 12.06 [ 17 ]8 e＋O2→e＋2O BOLSIG＋ 5.58 [ 17 ]9 e＋O2→O2− BOLSIG＋ / [ 17 ]10 Ar*＋Ar*→e＋Ar＋Ar+ 6.4×10−16 (m−3/s) / [ 17 ]11 Ar*＋Ar→Ar＋Ar 2.09×10−21 (m−3/s) / [ 17 ]12 Ar*＋N2→Ar＋2N 3.6×10−17 (m−3/s) / [ 17 ]13 Ar*＋O2→Ar＋2O 2.1×10−16 (m−3/s) / [ 17 ]
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Yuanyuan Jiang, Yanhui Wang, Caihui Gao, Dezhen Wang. Numerical study of atmospheric pressure Ar plasma jets under different electrode structures[J]. High Power Laser and Particle Beams, 2021, 33(6): 065011
Paper Information
Category: Plasma and Its Application Technology
Received: Apr. 16, 2021
Accepted: --
Published Online: Jul. 22, 2021
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