排序方式: 共有5条查询结果,搜索用时 15 毫秒
1
1.
Influences of Temperature and Average Interparticle Distance on the Properties of Two-Dimensional Dusty Plasma 总被引:1,自引:0,他引:1
LIU Song-Fen WANG Xin LIU Yu-Bin HU Bei-Lai WANG Long LIU Yan-Hong HUANG Feng 《理论物理通讯》2005,43(5):919-922
The structure and single-particle motion of a two-dimensional
dusty plasma have been investigated. Pair correlation function,
mean square displacement, velocity autocorrelation function, and the
corresponding spectrum function have been computed by molecular
dynamical simulation. The results show that the coagulation of a
two-dimensional dusty plasma system is strongly affected
by particle density and temperature, which are discussed in details. 相似文献
2.
In this paper, the structural and single-particle motive properties of a two-dimensional dusty plasmas are investigated numerically by molecular dynamics simulation within the framework of a dissipative Yukawa model.The pair correlation function, the mean square displacement, the static structure factor, and the bond angle correlation function characterizing the structural properties, and the velocity autocorrelation function with Fourier spectrum function characterizing the single-particle motion have been calculated for different values of coupling constant Γ and viscous damping constant vf. The results show that the system will coagulate quickly with increasing viscous damping constant and coupling constant, and the critical value of friction parameter decreases with increasing the coupling constant in the system. 相似文献
3.
KONG Wei WANG Xin LIU Song-Fen HU Bei-Lai WANG Long 《理论物理通讯》2007,47(3):569-572
In a two-dimensional (219) dusty plasma system, the size of particles is considered under two different interparticle potentials (Yukawa potential and Dressed potential). The structural and dynamical characters are investigated by molecular dynamics simulation respectively. The results show that the 2D systems via Yukawa and Dressed potentials have a different critical coupling constant F corresponding to the systems beginning to coagulate and exhibit different crystal configurations. Also we find that the size of particles has little influence on the 2D system's structure characters. 相似文献
4.
本文考虑等离子体密度分布变化, 得到了修正屏蔽库仑势的解析解. 数值分析以及分子动力学模拟表明, 在常见实验室参数情况下, 等离子体密度分布变化引起的屏蔽库仑势修正对二维尘埃等离 子体系统的动力学和结构特性影响很小. 在极限参数情况下, 本模型的计算结果表明二维尘埃等离子体系统的扩散能力明显降低, 并且系统组态呈圆形分布. 此外, 本文还研究了实验室常见大小磁场对二维尘埃等离子体系统的影响.
关键词:
修正屏蔽库仑势
二维尘埃等离子体
分子动力学模拟 相似文献
5.
1