Glidingarc discharges can produce periodic non-equilibrium low-temperature plasma at atmospheric pressure. However, the periodicity of the gliding arcsin pulsed discharge is affected by the discharge parameters and the gas flow.In this paper, the microsecond pulse power supply is used to excite the gliding arc dischargewith knife electrodes. The periodic characteristics of the pulse gliding arc are experimentally studied by changing the gas flow rate and the pulse repetition frequency (PRF). The results show that with the increase of gas flow, the average velocity of the gliding arcs gradually increases. When the flow rateis less than 4.6 m/s, the airflow is in laminar state and the gliding arc exhibits a periodic mode. The maximum height of the gliding arc increases when the flow rate increases. When the flow rate is 5.0~8.0 m/s, the air current is in the state of transition from laminar to turbulent flow and the gliding arc discharge transitions from periodic to non-periodic mode and the corresponding maximum height of the gliding arc is reduced. When the flow rate is fixed at 5.0 m/s, the gliding period gradually changes from the non-periodic discharge to the periodic discharge when the PRF increases, and the maximum height of the gliding arcs also increases. Therefore, a stable airflow field and high PRF are beneficial to the periodic development of the gliding arcs.
KEY WORDS :non-equilibrium plasma;gliding arc discharge;atmospheric-pressure discharge;gliding cycle;pulse repetition frequency;
[1]
KONGC, GAOJ, ZHUJ, et al.Characterization of an AC glow-type gliding arc discharge in atmospheric air with a current-voltage lumped model[J]. , 2017, 24(9): 093515.
[2]
GANGOLI SP, GUTSOL AF, FRIDMAN AA.A non-equilibrium plasma source: magnetically stabilized gliding arc discharge: I. design and diagnostics[J]. , 2010, 19(6): 065003.
[4]
WANGR, ZHANGC, LIUX, et al.Microsecond pulse driven Ar/CF4, plasma jet for polymethylmethacrylate surface modification at atmospheric pressure[J]. , 2015, 328: 509-515.
[5]
邵涛,章程,王瑞雪,等. 大气压脉冲气体放电与等离子体应用[J]. ,2016,42(3):685-706.SHAOTao, ZHANGCheng, WANGRuixue, et al.Atmospheric-pressure pulsed gas discharge and pulsed plasma application[J]. , 2016, 42(3): 685-706.
[6]
王瑞雪,海彬,田思理,等. 绝缘材料表面电荷测量优化及等离子体处理对其表面电特性的影响[J]. ,2017,43(6):1808-1815.WANGRuixue, HAIBin, TIANSili, et al.Optimization of dielectric material surface charge measurement and impact of plasma treatment on their surface electrical characteristics[J]. , 2017, 43(6): 1808-1815.
[7]
ZHUJ, SUNZ, LIZ, et al.Dynamics, OH distributions and UV emission of a gliding arc at various flow-rates investigated by optical measurements[J]. , 2014, 47(29): 295203.
[8]
KUSANOY, SORENSEN BF, ANDERSEN TL, et al.Water-cooled non-thermal gliding arc for adhesion improvement of glass-fibre-reinforced polyester[J]. , 2013, 46(13): 135203.
[9]
牛宗涛,章程,马云飞,等. 气流对微秒脉冲滑动放电特性的影响[J]. ,2015,64(19):225-232.NIUZongtao, ZHANGCheng, MAYunfei, et al.Effect of flow rate on the characteristics of repetitive microsecond-pulse gliding discharges[J]. , 2015, 64(19): 225-232.
[10]
CZERNICHOWSKIA.Gliding arc: applications to engineering and environment control[J]. , 1994, 66(6): 1301-1310.
[11]
海彬,章程,王瑞雪,等. 等离子体沉积类SiO2薄膜抑制环氧树脂表面电荷积聚[J]. ,2017,43(2):375-384.HAIBin, ZHANGCheng, WANGRuixue, et al.Plasma depositing SiO2-like film to suppress surface charge accumulation on epoxy resin[J]. , 2017, 43(2): 375-384.
[12]
ZHANGC, SHAOT, XUJ, et al.A gliding discharge in open air sustained by high-voltage resonant AC power supply[J]. , 2012, 40(11): 2843-2849.
[13]
ZHUJ, GAOJ, LIZ, et al.Sustained diffusive alternating current gliding arc discharge in atmospheric pressure air[J]. , 2014, 105(23): 234102.
[14]
ZHUJ, GAOJ, EHNA, et al.Spatiotemporally resolved characteristics of a gliding arc discharge in a turbulent air flow at atmospheric pressure[J]. , 2017, 24(1): 013514.
[15]
倪明江,余量,李晓东,等. 大气压直流滑动弧等离子体工作特性研究[J]. ,2011,60(1):389-396.NIMingjiang, YULiang, LIXiaodong, et al.Characterization of atmospheric pressure DC gliding arc plasma[J]. , 2011, 60(1): 389-396.
[16]
KOROLEV YD, FRANTS OB, LANDL NV, et al.Features of a near-cathode region in a gliding arc discharge in air flow[J]. , 2014, 23(5): 054016.
[17]
KOROLEV YD, MATVEEV IB.Nonsteady-state processes in a plasma pilot for ignition and flame control[J]. , 2006, 34(6): 2507-2513.
[18]
KOROLEV YD, FRANTS OB, GEYMAN VG, et al.Low-current “gliding arc” in an air flow[J]. , 2011, 39(12): 3319-3325.
[20]
ZHANGC, NIUZ, RENC, et al.Factors influencing the discharge mode for microsecond-pulse gliding discharges at atmospheric pressure[J]. , 2017, 24(4): 2148-2156.
[21]
ZHANGC, SHAOT, YANP, et al.Nanosecond-pulse gliding discharges between point-to-point electrodes in open air[J]. , 2014, 23(3): 035004.
[22]
牛宗涛,章程,王瑞雪,等. 脉冲重复频率对微秒脉冲滑动放电特性影响的实验研究[J]. ,2016,31(19):191-198.NIUZongtao, ZHANGCheng, WANGRuixue, et al.Experimental study on the effect of the pulse repetition frequency on the characteristics of microsecond-pulse gliding discharges[J]. , 2016, 31(19): 191-198.
[23]
POTOČŇÁKOVÁL, ŠPERKAJ, ZIKÁNP, et al. Gravity effects on a gliding arc in four noble gases: from normal to hyper gravity[J]. , 2015, 24(2): 022002.
[24]
POTOČŇÁKOVÁL, ŠPERKAJIŘÍ, ZIKÁNP, et al. Experimental study of gliding arc plasma channel motion: buoyancy and gas flow phenomena under normal and hypergravity conditions[J]. , 2017, 26(4): 045014.
[25]
宁文军,戴栋,张雨晖,等. 短间隙大气压氦气介质阻挡放电中非线性现象的1维流体仿真[J]. ,2017,43(6):1845-1853.NINGWenjun, DAIDong, ZHANGYuhui, et al.Simulation of nonlinear phenomena in short-gap atmospheric helium dielectric barrier discharge with one-dimensional fluid model[J]. , 2017, 43(6): 1845-1853.
[26]
LIX, BAOW, CHUJ, et al.A uniform laminar air plasma plume with large volume excited by an alternating current voltage[J]. , 2015, 24(6): 065020.
[27]
PETROVIC ZL, MARKOVIC VL, PEJOVIC MM, et al.Memory effects in the afterglow: open questions on long-lived species and the role of surface processes[J]. , 2001, 34(12): 1756-1768.
[28]
何立明,陈一,刘兴建,等. 大气压交流滑动弧的放电特性[J]. ,2016,42(6):1921-1928.HELiming, CHENYi, LIUXingjian, et al.Discharge characteristic of atmospheric pressure AC gliding arc[J]. , 2016, 42(6): 1921-1928.
[29]
MITSUGIF, JINF, OHSHIMAT, et al.Observation of dynamic behavior of gliding arc discharge[J]. , 2013, 61(2): 24308.
[30]
MITSUGIF, OHSHIMAT, KAWASAKIH, et al.Gas flow dependence on dynamic behavior of serpentine plasma in gliding arc discharge system[J]. , 2014, 42(12): 3681-3686.