• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE International Conference on Plasma Science >Collisional Plasma Wakes of Small Particles
【24h】

Collisional Plasma Wakes of Small Particles

机译：小颗粒碰撞等离子体唤醒

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Dynamical screening and wake effects in complex plasmas have been the subject of many investigations, including theoretical [1,2] as well as experimental work [3]. It was shown using Linear Response (LR) theory that the characteristic features of the wake potential for non-Maxwellian plasma are qualitatively different from Maxwellian streaming ions. Here, the electrostatic potential of a dust grain in streaming ions in the presence of collisions is computed using three-dimensional particle-in-cell (PIC) code `COPTIC' [4]. We compare our numerical results (PIC) with the wake potential obtained from the LR formalism as well as hydrodynamic simulations for Maxwellian case in linear as well as nonlinear regime. Wakes exhibit interesting physical characteristics for magnetized streaming ions [5]. We discuss the physics of distribution function, flux etc. around the grain and present a parametric study of wake peak position, peak potential vs. collision frequency for the non-Maxwellian streaming plasmas in the absence and presence of magnetic field.
机译：复杂等离子体中的动态筛选和唤醒效应已成为许多研究的主题，包括理论[1,2]和实验工作[3]。使用线性响应（LR）理论表明，非麦克斯韦等离子体的唤醒电势的特征在性质上与麦克斯韦流态离子有所不同。在这里，存在碰撞的流离子中尘埃的静电势是使用PIC的3维代码“ COPTIC”计算的[4]。我们将数值结果（PIC）与从LR形式主义以及麦克斯韦方程在线性和非线性状态下的流体动力学模拟获得的唤醒电势进行比较。尾流对于磁化的流态离子表现出有趣的物理特性[5]。我们讨论了晶粒周围分布函数，通量等的物理性质，并提出了在不存在和存在磁场的情况下非麦克斯韦流态等离子体的唤醒峰位置，峰电势与碰撞频率的参数研究。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号