Time-Dependent Nonplanar Dust-Ion-Acoustic Gardner Double Layers

• 作者: A. A. Mamun Farah Deeba
• 来源期刊: 声学期刊(英文)
• 学科: 数学
• 关键词: Dust-Ion-Acoustic Double Layers NONPLANAR
• 年，卷（期）: sxqkyw_2011,（3）
• 页码范围: 70-75
• 页数: 6页
• 分类号: O1

摘要

A theoretical investigation has been made on the nonplanar (cylindrical and spherical) dust-ion-acoustic (DIA) double layers (DLs) in a dusty plasma system, containing inertial ions, Boltzmann electrons, and negatively charged stationary dust. In this investigation, in order to analyze the time dependent nonplanar DIA DLs, we have used the modified Gardner equation, which has been obtained by employing the reductive perturbation method. It has been found that the behaviors of DIA DLs have been significantly modified by the time period and the nonplanar geometry. The nonplanar DIA DLs has been found to be similar with planar DIA DLs only at large time scale and the cylindrical DIA DLs have been found to be smaller than the spherical DLs, but larger than the planar DLs.