Advanced Search+
YANG Lanlan (杨兰兰). Mechanisms of Streamer Propagation Affected by Driven Voltage Polarity in a Cold Atmospheric Pressure Plasma Jet[J]. Plasma Science and Technology, 2015, 17(1): 25-31. DOI: 10.1088/1009-0630/17/1/06
Citation: YANG Lanlan (杨兰兰). Mechanisms of Streamer Propagation Affected by Driven Voltage Polarity in a Cold Atmospheric Pressure Plasma Jet[J]. Plasma Science and Technology, 2015, 17(1): 25-31. DOI: 10.1088/1009-0630/17/1/06

Mechanisms of Streamer Propagation Affected by Driven Voltage Polarity in a Cold Atmospheric Pressure Plasma Jet

Funds: supported by the Natural Science Foundation of Jiangsu Province of China (No. BK2012737), National Natural Science Foundation of China (Nos. 61271053, 50907009), and the Fundamental Research Funds for the Central Universities of China (No. 2242011R30018)
More Information
  • Received Date: March 20, 2014
  • A two-dimensional self-consistent fluid model is used to investigate the effects of DC-voltage polarity in plasma initiation and propagation of helium plasma jet. The simulation results indicate that the difference in initial breakdown for the positive jet and negative jet leads to a difference in the electron density of about 4 orders of magnitude, even with the same initial electric field, which also influences the subsequent propagation. In the propagation process of negative jets, the ionization process exists in a longer gas channel behind the streamer head. In addition, the drift process to the infinite grounded electrode driven by the electric field results in higher energy consumption in the ionization process. However, in the positive jet, the ionization process mainly exists in the streamer head. Therefore, the differences in the initial breakdown and propagation process make the electric field intensity and the ionization weaker in the streamer head of the negative jet, which explains the weaker and shorter appearance of the negative jet compared to the positive jet. Our model can adequately reproduce the experimental results, viz. a bullet-like propagation in the positive jet and a continuous plasma plume in the negative jet. Furthermore, it also indicates that the streamer velocity shows the same variations as the electron drift velocity for both positive and negative jets.
  • Related Articles

    [1]Jiacun WU (武珈存), Kaiyue WU (吴凯玥), Junyu CHEN (陈俊宇), Caihong SONG (宋彩虹), Pengying JIA (贾鹏英), Xuechen LI (李雪辰). Influence of air addition on surface modification of polyethylene terephthalate treated by an atmospheric pressure argon plasma brush[J]. Plasma Science and Technology, 2021, 23(8): 85504-085504. DOI: 10.1088/2058-6272/ac0109
    [2]Mooktzeng LIM (林木森), Ahmad Zulazlan Shah ZULKIFLI. Investigation of biomass surface modification using non-thermal plasma treatment[J]. Plasma Science and Technology, 2018, 20(11): 115502. DOI: 10.1088/2058-6272/aac819
    [3]PENG Shi (彭释), LI Lingjun (李灵均), LI Wei (李炜), WANG Chaoliang (王超梁), GUO Ying (郭颖), SHI Jianjun (石建军), ZHANG Jing (张菁). Surface Modification of Polyimide Film by Dielectric Barrier Discharge at Atmospheric Pressure[J]. Plasma Science and Technology, 2016, 18(4): 337-341. DOI: 10.1088/1009-0630/18/4/01
    [4]LIU Wenzheng (刘文正), LEI Xiao (雷晓), ZHAO Qiang (赵强). Study on Glow Discharge Plasma Used in Polyester Surface Modification[J]. Plasma Science and Technology, 2016, 18(1): 35-40. DOI: 10.1088/1009-0630/18/1/07
    [5]CHE Yao (车垚), ZHOU Jiayong (周家勇), WANG Zuwu (王祖武). Plasma Modification of Activated Carbon Fibers for Adsorption of SO 2[J]. Plasma Science and Technology, 2013, 15(10): 1047-1052. DOI: 10.1088/1009-0630/15/10/16
    [6]YAN Ying (燕颖), CAI Kaiyong (蔡开勇), YANG Weihu (杨维虎), LIU Peng (刘鹏). Surface Modification of NiTi Alloy via Cathodic Plasma Electrolytic Deposition and its Effect on Ni Ion Release and Osteoblast Behaviors[J]. Plasma Science and Technology, 2013, 15(7): 648-653. DOI: 10.1088/1009-0630/15/7/09
    [7]LIU Hongxia (刘红霞), LIU Yun (刘云). Investigation on the Effects and Mechanisms of PTFE Surface Modification by Low Pressure Plasma?[J]. Plasma Science and Technology, 2012, 14(8): 728-734. DOI: 10.1088/1009-0630/14/8/09
    [8]ZHAO Guowei, GAO Junping, GAO Qiang, CHEN Yashao. Surface Modification of Biodegradable Poly(D,L-lactic acid) by Nitrogen and Nitrogen/Hydrogen Plasma for Improving Surface Hydrophilicity[J]. Plasma Science and Technology, 2011, 13(2): 230-234.
    [9]ZHONG Shao-Feng (钟少锋). Surface Modification of Polypropylene Microporous Membrane by Atmospheric- Pressure Plasma Immobilization of N,N-dimethylamino ethyl methacrylate[J]. Plasma Science and Technology, 2010, 12(5): 619-627.
    [10]YE Wenting(叶文婷), WU Di(吴迪), PAN Xin(潘欣), CHEN Yashao(陈亚芍), HAN Yong(憨勇), SONG Zhongxiao(宋忠孝). Preparation of Chitosan Coatings Containing Calcium and Phosphorus on Titanium Surface by the Cathode Liquid Phase Plasma Technology[J]. Plasma Science and Technology, 2010, 12(5): 614-618.

Catalog

    Article views (379) PDF downloads (1213) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return