超声速等离子体射流的数值模拟  

Numerical modeling of supersonic plasma jet

作　　者：袁行球[1] 李辉[2] 赵太泽[1] 俞国扬[3] 郭文康[1] 须平[1] 

机构地区：[1]复旦大学现代物理研究所,上海200433 [2]中国科学技术大学热科学与能源工程系,合肥230027 [3]中国科学院等离子体物理研究所,合肥230031

出　　处：《物理学报》2004年第8期2638-2643,共6页Acta Physica Sinica

基　　金：教育部重点实验室高级访问学者计划;中路 波尔奖学金;中国工程物理奖学金;三星奖学金资助的课题

摘　　要：基于可压缩的全Naiver Stokes方程 ,利用PHOENICS程序对由会聚 辐射阳极形状等离子体炬产生的超声速等离子体射流进行了数值模拟 .考虑了等离子体的黏性、可压缩性以及变物性对等离子体射流特性影响 .研究了超声速等离子体射流的流场结构特性以及不同环境压力对等离子体射流产生激波结构的影响 .结果表明 。Numerical simulation results are presented in this paper concerning the heat transfer and fluid flow within the supersonic plasma jet, which is produced by the converging diverging plasma torch. The full Naiver Stokes equations, which take into account the gas viscous effects, temperature and pressure dependent properties, and compressible effects, are employed in this simulation and the PHOENICS software is used to solve the set of nonlinear equations. The shock structure within the supersonic plasma jet is analysed in detail,and the effects of ambient pressure on the jet flow field are studied. Results show that the supersonic plasma flow interacts with the ambient gas and forms a series of compression and expansion waves in the region near the torch nozzle exit.

关 键 词：等离子体炬 超声速等离子体射流 数值模拟 Naiver-Stokes方程 PHOENICS程序 等离子体化学汽相沉积 

分 类 号：O539[理学—等离子体物理]