Short-pulse high-power microwave breakdown at high pressures
The fluid model is proposed to investigate the gas breakdown driven by a short-pulse（such as a Gaussian pulse） highpower microwave at high pressures.However,the fluid model requires specification of the electron energy distribution function（EEDF）;the common assumption of a Maxwellian EEDF can result...
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| Published in | Chinese physics B Vol. 24; no. 2; pp. 282 - 286 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.02.2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-1056 2058-3834 1741-4199 |
| DOI | 10.1088/1674-1056/24/2/025101 |
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| Abstract | The fluid model is proposed to investigate the gas breakdown driven by a short-pulse（such as a Gaussian pulse） highpower microwave at high pressures.However,the fluid model requires specification of the electron energy distribution function（EEDF）;the common assumption of a Maxwellian EEDF can result in the inaccurate breakdown prediction when the electrons are not in equilibrium.We confirm that the influence of the incident pulse shape on the EEDF is tiny at high pressures by using the particle-in-cell Monte Carlo collision（PIC-MCC） model.As a result,the EEDF for a rectangular microwave pulse directly derived from the Boltzmann equation solver Bolsig＋ is introduced into the fluid model for predicting the breakdown threshold of the non-rectangular pulse over a wide range of pressures,and the obtained results are very well matched with those of the PIC-MCC simulations.The time evolution of a non-rectangular pulse breakdown in gas,obtained by the fluid model with the EEDF from Bolsig＋,is presented and analyzed at different pressures.In addition,the effect of the incident pulse shape on the gas breakdown is discussed. |
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| AbstractList | The fluid model is proposed to investigate the gas breakdown driven by a short-pulse（such as a Gaussian pulse） highpower microwave at high pressures.However,the fluid model requires specification of the electron energy distribution function（EEDF）;the common assumption of a Maxwellian EEDF can result in the inaccurate breakdown prediction when the electrons are not in equilibrium.We confirm that the influence of the incident pulse shape on the EEDF is tiny at high pressures by using the particle-in-cell Monte Carlo collision（PIC-MCC） model.As a result,the EEDF for a rectangular microwave pulse directly derived from the Boltzmann equation solver Bolsig＋ is introduced into the fluid model for predicting the breakdown threshold of the non-rectangular pulse over a wide range of pressures,and the obtained results are very well matched with those of the PIC-MCC simulations.The time evolution of a non-rectangular pulse breakdown in gas,obtained by the fluid model with the EEDF from Bolsig＋,is presented and analyzed at different pressures.In addition,the effect of the incident pulse shape on the gas breakdown is discussed. The fluid model is proposed to investigate the gas breakdown driven by a short-pulse (such as a Gaussian pulse) high-power microwave at high pressures. However, the fluid model requires specification of the electron energy distribution function (EEDF); the common assumption of a Maxwellian EEDF can result in the inaccurate breakdown prediction when the electrons are not in equilibrium. We confirm that the influence of the incident pulse shape on the EEDF is tiny at high pressures by using the particle-in-cell Monte Carlo collision (PIC-MCC) model. As a result, the EEDF for a rectangular microwave pulse directly derived from the Boltzmann equation solver Bolsig+ is introduced into the fluid model for predicting the breakdown threshold of the non-rectangular pulse over a wide range of pressures, and the obtained results are very well matched with those of the PIC-MCC simulations. The time evolution of a non-rectangular pulse breakdown in gas, obtained by the fluid model with the EEDF from Bolsig+, is presented and analyzed at different pressures. In addition, the effect of the incident pulse shape on the gas breakdown is discussed. |
| Author | 赵朋程 廖成 冯菊 |
| AuthorAffiliation | Institute of Electromagnetics, Southwest ]iaotong University, Chengdu 610031, China School of Physics and Optoelectronic Engineering, Xidian University, Xi＇an 710071, China |
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| CitedBy_id | crossref_primary_10_7567_JJAP_55_086001 crossref_primary_10_7498_aps_65_068502 crossref_primary_10_1103_PhysRevApplied_16_054038 |
| Cites_doi | 10.1063/1.865872 10.1063/1.3652845 10.1063/1.4736863 10.1163/156939311798806130 10.1103/RevModPhys.12.87 10.1016/j.cpc.2008.12.013 10.1088/0963-0252/14/4/011 10.1006/jcph.1993.1034 10.1063/1.4768220 10.1063/1.859731 10.1088/1009-1963/9/10/008 10.7498/aps.62.055101 10.1063/1.1660032 10.1016/0010-4655(94)00171-W |
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| Notes | Zhao Peng-Cheng, Liao Cheng, and Feng Ju（ a） Institute of Electromagnetics, Southwest Jiaotong University, Chengdu 610031, China; b） School of Physics and Optoelectronic Engineering, Xidian University, Xi＇an 710071, China fluid model, electron energy distribution function, gas breakdown, short-pulse high-power microwave 11-5639/O4 The fluid model is proposed to investigate the gas breakdown driven by a short-pulse（such as a Gaussian pulse） highpower microwave at high pressures.However,the fluid model requires specification of the electron energy distribution function（EEDF）;the common assumption of a Maxwellian EEDF can result in the inaccurate breakdown prediction when the electrons are not in equilibrium.We confirm that the influence of the incident pulse shape on the EEDF is tiny at high pressures by using the particle-in-cell Monte Carlo collision（PIC-MCC） model.As a result,the EEDF for a rectangular microwave pulse directly derived from the Boltzmann equation solver Bolsig＋ is introduced into the fluid model for predicting the breakdown threshold of the non-rectangular pulse over a wide range of pressures,and the obtained results are very well matched with those of the PIC-MCC simulations.The time evolution of a non-rectangular pulse breakdown in gas,obtained by the fluid model with the EEDF from Bolsig＋,is presented and analyzed at different pressures.In addition,the effect of the incident pulse shape on the gas breakdown is discussed. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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| References | 13 15 16 17 Zhang L (8) 2013; 22 Liu G (6) 2000; 9 1 Zhao P (12) 2014; 23 2 3 4 5 Hagelaar G (11) 2005; 14 7 9 Sun J (14) 2012; 21 10 |
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| Snippet | The fluid model is proposed to investigate the gas breakdown driven by a short-pulse（such as a Gaussian pulse） highpower microwave at high... The fluid model is proposed to investigate the gas breakdown driven by a short-pulse (such as a Gaussian pulse) high-power microwave at high pressures.... |
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| SubjectTerms | Breakdown Computational fluid dynamics Computer simulation Fluid flow Fluids Gas breakdown Mathematical models Microwaves Pulse shape 气体击穿 波尔兹曼方程 流体模型 电子能量分布函数 矩形脉冲 短脉冲 高功率微波 高压力 |
| Title | Short-pulse high-power microwave breakdown at high pressures |
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