层流氩等离子体射流温度的测量
Temperature measurements of laminar argon plasma jet
查看参考文献13篇
|
文摘
|
采用给水冷管状静电探针施加负偏置电压,并使探针以一定速度垂直于射流轴线扫过层流氩等离子体射流的方法,测量探针所收集到的累积离子饱和电流随侧向位置的变化,利用Abel变换推导出了局部离子饱和电流密度沿射流径向的分布;采用自制的水冷动压探针,以动态扫描法测量了射流动压沿射流径向的分布;根据局部离子饱和电流密度和射流动压的测量数据,由理论关系式推导出了等离子体射流横截面上的温度分布,同时,采用谱线相对强度法测量了等离子体射流的激发温度.结果表明:两种方法得到的等离子体射流中心温度吻合较好,所得到的射流中心温度随弧电流加大而增大的变化趋势也一致 |
|
其他语种文摘
|
The cumulative ion saturation currents on a cylindrical probe are measured by using a negatively biased, water-cooled cylindrical electrostatic probe sweeping with a fixed speed perpendicularly across a laminar argon plasma jet, and the radial distribution of local ion saturation current density is then obtained by use of the Abel inversion. The radial distribution of the jet impact pressure is also measured dynamically using a water-cooled pressure probe. Based on the measured profiles of the local ion saturation current density and impact pressure and using related theoretical relations, the radial distribution of the plasma jet temperature is deduced. Additionally, the spectroscopic method based on the relative-intensity of spectral lines is employed to measure the plasma jet temperature. Experimental results show that the plasma jet temperature and its variation with arc current measured with these two methods are consistent with each other |
|
来源
|
强激光与粒子束
,2011,23(3):783-786 【核心库】
|
|
DOI
|
10.3788/hplpb20112303.0783
|
|
关键词
|
温度测量
;
层流等离子体射流
;
离子饱和电流
;
动压
;
光谱法
|
|
地址
|
1.
中国科学院力学研究所, 北京, 100190
2.
清华大学工程力学系, 北京, 100084
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1001-4322 |
|
学科
|
物理学 |
|
基金
|
国家自然科学基金项目
|
|
文献收藏号
|
CSCD:4166442
|
参考文献 共
13
共1页
|
|
1.
Pfender E. A new look at the thermal and gas dynamic characteristics of a plasma jet.
Int J Mater Product Technol,1995,10(3/6):548-565
|
被引
7
次
|
|
|
|
|
2.
Pan Wenxia. Generation of long, laminar plasma jets at atmospheric pressure and effects of flow turbulence.
Plasma Chemistry and Plasma Processing,2001,21(1):23-35
|
被引
34
次
|
|
|
|
|
3.
Kuz'min V. Application of DC plasma torch with a quasilaminar jet outflow for coating treatment.
Procee dings of the 8th National Thermal Spray Conference,1995:83-89
|
被引
1
次
|
|
|
|
|
4.
Osaki K. High thermal efficiency-type laminar plasma jet generator for plasma processing.
Vacuum,2000,59:47-54
|
被引
14
次
|
|
|
|
|
5.
Pan Wenxia. Feasibility of laminar plasma-jet hardening of cast iron surface.
Surfaceand Coatings Technology,2005,197(2/3):345-350
|
被引
13
次
|
|
|
|
|
6.
Ma Wei. Investigation of laminar plasma remelting/cladding processing.
Applied Surface Science,2006,252(10):3541-3546
|
被引
11
次
|
|
|
|
|
7.
Auciello O.
Plasma diagnostics: Vol. 1. Discharge parameters and chemistry,1994
|
被引
1
次
|
|
|
|
|
8.
孟显. 层流等离子体射流温度与速度测量.
工程热物理学报,2004,25(3):490-492
|
被引
11
次
|
|
|
|
|
9.
Deutsch M. Inversion of Abel's integral equation for experimental data.
Journal of Applied Physics,1983,54(1):137-143
|
被引
3
次
|
|
|
|
|
10.
Chen X. Ion saturation current density and specific heat flux on a cylindrical probe immersed in a dense plasma flow.
Journalof Physics D: Applied Physics,1982,15:1695-1708
|
被引
1
次
|
|
|
|
|
11.
吴望一.
流体力学,2000
|
被引
14
次
|
|
|
|
|
12.
孟显.
层流等离子体射流的流动与传热特性研究,2006:77-81
|
被引
1
次
|
|
|
|
|
13.
Zucrow M J.
Gas dynamics: VolumeⅠ,1976
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问