典型文献
Experimental and simulated investigation of microdischarge characteristics in a pin-to-pin dielectric barrier discharge(DBD)reactor
文献摘要:
Both experimental and simulated studies of microdischarge(MD)are carried out in a dielectric barrier discharge with a pin-to-pin gap of 3.5 mm,ignited by a sinusoidal voltage with a peak voltage of 10 kV and a driving frequency of 5 kHz.Statistical results have shown that the probability of the single current pulse in the positive half-period(HP)reaches 73.6%under these conditions.Experimental results show that great luminous intensity is concentrated on the dielectric surface and the tip of the metal electrode.A 1D plasma fluid model is implemented by coupling the species continuity equations,electron energy density equations,Poisson equation,and Helmholtz equations to analyze the MD dynamics on the microscale.The simulated results are in good qualitative agreement with the experimental results.The simulated results show that the MD dynamics can be divided into three phases:the Townsend phase,the streamer propagation phase,and the discharge decay phase.During the streamer propagation phase,the electric field and electron density increase with the streamer propagation from the anode to the cathode,and their maximal values reach 625.48 Td and 2.31×1019 m-3,as well as 790.13 Td and 3.58 x 1019m-3 in the positive and negative HP,respectively.Furthermore,a transient glow-like discharge is detected around the anode during the same period of streamer propagation.The formation of transient glow-like discharge is attributed to electrons drifting back to the anode,which is driven by the residual voltage in the air gap.
文献关键词:
中图分类号:
作者姓名:
Junwen HE;Bangfa PENG;Nan JIANG;Kefeng SHANG;Na LU;Jie LI;Yan WU
作者机构:
School of Electrical Engineering,Dalian University of Technology,Dalian 116024,People's Republic of China
文献出处:
引用格式:
[1]Junwen HE;Bangfa PENG;Nan JIANG;Kefeng SHANG;Na LU;Jie LI;Yan WU-.Experimental and simulated investigation of microdischarge characteristics in a pin-to-pin dielectric barrier discharge(DBD)reactor)[J].等离子体科学和技术(英文版),2022(10):54-66
A类:
microdischarge,1019m
B类:
Experimental,simulated,investigation,characteristics,pin,dielectric,barrier,DBD,reactor,Both,experimental,studies,MD,are,carried,out,gap,ignited,by,sinusoidal,voltage,peak,kV,driving,frequency,kHz,Statistical,results,have,shown,that,probability,single,current,pulse,positive,half,period,HP,reaches,under,these,conditions,great,luminous,intensity,concentrated,surface,tip,metal,electrode,1D,plasma,fluid,model,implemented,coupling,species,continuity,equations,energy,density,Poisson,Helmholtz,analyze,dynamics,microscale,good,qualitative,agreement,can,be,divided,into,three,phases,Townsend,streamer,propagation,decay,During,field,increase,from,anode,cathode,their,maximal,values,Td,well,negative,respectively,Furthermore,transient,glow,like,detected,around,during,same,formation,attributed,electrons,drifting,back,which,driven,residual,air
AB值:
0.512346
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