Plasma Parameters of a Gliding Arc Jet at Atmospheric Pressure Obtained by a Line-Ratio Method  

作　　者：李辉 谢铭丰 

机构地区：[1]Department of Thermal Science and Energy Engineering,University of Science and Technology of China [2]National Synchrotron Radiation Laboratory,University of Science and Technology of China

出　　处：《Plasma Science and Technology》2013年第8期776-779,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.10975136,11035005);USTC-NSRL Association Funding of China(No.KY2090130001)

摘　　要：A generator of the gliding arc jet （GAJ）, which is driven by a transverse magnetic field, is developed to produce non-equilibrium plasma at atmospheric pressure. The gas temperature is estimated using the spectrum of OH radicals to be about 2400±400 K. The determinations of electron temperature and electron density by using a line-ratio method are elaborated for the gliding arc jet plasma. This line-ratio method is based on a collisional-radiative model. The experiment results show that electron temperature is about 1.0 eV and electron density is about 6.9×1014 cm-3 . Obviously, the plasma of GAJ is in a non-equilibrium state.A generator of the gliding arc jet （GAJ）, which is driven by a transverse magnetic field, is developed to produce non-equilibrium plasma at atmospheric pressure. The gas temperature is estimated using the spectrum of OH radicals to be about 2400±400 K. The determinations of electron temperature and electron density by using a line-ratio method are elaborated for the gliding arc jet plasma. This line-ratio method is based on a collisional-radiative model. The experiment results show that electron temperature is about 1.0 eV and electron density is about 6.9×1014 cm-3 . Obviously, the plasma of GAJ is in a non-equilibrium state.

关 键 词：GAJ line-ratio method collisional-radiative model （CRM） 

分 类 号：O358[理学—流体力学]