王德真

个人信息Personal Information

教授

博士生导师

硕士生导师

任职 : 《Plasma Science and Technology》学术期刊编委

性别:男

毕业院校:大连工学院

学位:硕士

所在单位:物理学院

学科:等离子体物理

办公地点:主楼东侧楼(物理系楼)304室

联系方式:0411-84707981

电子邮箱:wangdez@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

Numerical study of period multiplication and chaotic phenomena in an atmospheric radio-frequency discharge

点击次数:

论文类型:期刊论文

发表时间:2010-04-01

发表刊物:PHYSICS OF PLASMAS

收录刊物:SCIE、EI

卷号:17

期号:4

ISSN号:1070-664X

关键字:bifurcation; chaos; high-frequency discharges; plasma fluctuations; plasma instability; plasma simulation

摘要:In this paper, a computational study of period multiplication and chaotic behavior of radio-frequency (rf) dielectric-barrier discharge (DBD) in atmospheric argon using an one-dimension fluid model was reported. These complex nonlinear behaviors are closely associated with the current-voltage characteristics of rf DBD, and mainly occur in gamma-mode of rf DBD with relatively larger negative differential conductivity. With varying the discharge parameter rf DBD in gamma-mode undergoes a transition from single-period discharge to chaos through period doubling bifurcation. When period multiplication and chaos take place, the sheath electric field bifurcates to cause the regular or irregular fluctuation in sheath thickness, consequently resulting in the period multiplication or chaotic behavior of the discharge current density. The spatial characteristics of rf period multiplication or chaotic discharges are also investigated.