The electromagnetic properties of plasma produced by hypervelocity impact
文献类型：期刊论文
| 作者 | Zhang QM; Gong LF; Ma YF(马月芬) ; Long RR; Gong ZZ
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 25期号:2页码:22906 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/1.5009067 |
| 英文摘要 | The change of electron density in moving plasma in this paper is empirically determined according to multiple ground-based experimental results and the assumption of the Maxwell distribution. Moreover, the equation of the magnetic field intensity, dominated by the current due to the collective electron movement during the expansion, is presented on the basis of the Biot-Savart law, and its relationship with time and space is subsequently depicted. In addition, hypervelocity impact experiments on a 2AL12 target have been carried out using a two-stage light gas gun to accelerate a 2AL12 projectile of 6.4mm to 6.2 km/s. Spiral coils are designed to measure the intensity of the electromagnetic field induced by this impact. The experimental results show that the magnetic field strength is an alternate pulse maintaining nearly 1ms and its maximum is close to 15 mu T, which is strong enough to interfere with the communication circuit and chip in spacecrafts. Lastly, numerical simulation of the magnetic field intensity using this experimental parameter reveals that the intensity in our estimation from our theory tends to be well consistent with the experimental data in the first peak of the pulse signal. Published by AIP Publishing. |
| 分类号 | 一类/力学重要期刊 |
| URL标识 | 查看原文 |
| WOS关键词 | GENERATED MAGNETIC-FIELDS ; SPACE DEBRIS |
| WOS研究方向 | Physics, Fluids & Plasmas |
| 语种 | 英语 |
| WOS记录号 | WOS:000426584700064 |
| 资助机构 | National Natural Science Foundation of China [11521062, 11221202] ; National Basic Research Program of China [2010CB731600] |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/77872]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 3.Beijing Inst Spacecraft Environm Engn, Natl Key Lab Sci & Technol Reliabil & Environm En, Beijing 100094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang QM,Gong LF,Ma YF,et al. The electromagnetic properties of plasma produced by hypervelocity impact[J]. PHYSICS OF PLASMAS,2018,25(2):22906. |
| APA | Zhang QM,Gong LF,马月芬,Long RR,&Gong ZZ.(2018).The electromagnetic properties of plasma produced by hypervelocity impact.PHYSICS OF PLASMAS,25(2),22906. |
| MLA | Zhang QM,et al."The electromagnetic properties of plasma produced by hypervelocity impact".PHYSICS OF PLASMAS 25.2(2018):22906. |
入库方式： OAI收割
来源：力学研究所
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