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| Instabilities in a non-transferred direct current plasma torch operated at reduced pressure | |
Huang HJ(黄河激) ; Pan WX(潘文霞); Guo ZY(郭志颖); Wu CK(吴承康)
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| Source Publication | Journal of Physics D: Applied Physics
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| 2010-02-12 | |
| Volume | 43Issue:8Pages:085202 |
| ISSN | 0022-3727 |
| Abstract | Using an oscilloscope, a high-speed video camera and a double-electrostatic probe system, the periodicity and amplitude of the fluctuations in arc voltage, jet luminance and ion saturation current of a plasma jet were monitored to investigate various sources of instabilities and their effects in a non-transferred dc plasma torch operated at reduced pressure. The results show that besides a 300 Hz main fluctuation inherited from the power supply, arc voltage fluctuation of 3–4 kHz with an amplitude less than 5% of the mean voltage was mainly affected by the total gas flow rate. The arc voltage fluctuation can affect the energy distribution of the plasma jet which is detectable by electrostatic probes and a high-speed video camera. The steadiness of energy transfer is also affected by the laminar or turbulent flow state of the plasma. |
| Keyword | Atmospheric-pressure Arc Jets Fluctuations Generation Laminar |
| Subject Area | 交叉与边缘领域的力学 |
| DOI | 10.1088/0022-3727/43/8/085202 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000274411500007 |
| WOS Keyword | ATMOSPHERIC-PRESSURE ; ARC ; JETS ; FLUCTUATIONS ; GENERATION ; LAMINAR |
| WOS Research Area | Physics |
| WOS Subject | Physics, Applied |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43280 |
| Collection | 等离子体与燃烧中心(2009-2011) |
| Corresponding Author | Huang HJ(黄河激) |
| Recommended Citation GB/T 7714 | Huang HJ,Pan WX,Guo ZY,et al. Instabilities in a non-transferred direct current plasma torch operated at reduced pressure[J]. Journal of Physics D: Applied Physics,2010,43,8,:085202. |
| APA | 黄河激,潘文霞,郭志颖,&吴承康.(2010).Instabilities in a non-transferred direct current plasma torch operated at reduced pressure.Journal of Physics D: Applied Physics,43(8),085202. |
| MLA | 黄河激,et al."Instabilities in a non-transferred direct current plasma torch operated at reduced pressure".Journal of Physics D: Applied Physics 43.8(2010):085202. |
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