Three dimensional nonlinear shock waves in inhomogeneous plasmas with different size dust grains and external magnetized field  

作　　者：Liping ZHANG Jun FU Junyan SU 张丽萍;付君;苏俊燕(School of Sciences,Lanzhou University of Technology,Lanzhou 730050,People’s Republic of China)

机构地区：[1]School of Sciences,Lanzhou University of Technology,Lanzhou 730050,People’s Republic of China

出　　处：《Plasma Science and Technology》2020年第3期1-7,共7页等离子体科学和技术（英文版）

基　　金：National Natural Foundation of China(No.10975114);the HongLiu first-class disciplines Development Program of Lanzhou University of Technology.

摘　　要：The evolution of three dimensional nonlinear shock waves is investigated in a dusty plasma with inhomogeneous particles’density,nonadiabatic dust charge variation,external magnetized field and power law dust size distribution.For this purpose,a modified nonlinear Korteweg-de Vries Burgers equation containing variable coefficients is obtained by reductive perturbation method.The effects of inhomogeneity,dust size distribution,external magnetized field,dust charge variation and obliqueness parameter on shock structures are numerically examined in great detail.Furthermore,research results show that oscillatory shock waves and monotone shock waves exist and transform each other in this system.

关 键 词：shock structures INHOMOGENEITY NONADIABATIC DUST charge FLUCTUATION DUST SIZE distribution 

分 类 号：O53[理学—等离子体物理]