尘埃等离子体中非经典特性对尘埃模的影响
发布时间：2019-05-13 20:07
【摘要】：等离子体作为一种典型的电磁介质,其重要特点是蕴含着丰富的波动现象。等离子体中的波动性质及其非线性相互作用一直是等离子体物理的核心研究内容和应用技术基础。大量观测表明,等离子体环境中普遍存在着带电的尘埃颗粒,它广泛存在于宇宙空间、实验室和工业生产中。显然,尘埃等离子体中的带电尘埃颗粒所具有的特殊性质将显著影响系统中的波-波、波-粒非线性相互作用,因而将在许多方面表现出与经典等离子体不同的物理特性。本文围绕着尘埃等离子体中的尘埃声波模,从流体论角度出发,研究了尘埃等离子体中的非经典特性对尘埃声波模的影响。研究结果给出了非经典特性对尘埃声波模影响的物理图像和相关物理结论,这为解释精细观测和实验结果提供理论支持和指导。本文在绪论中介绍了尘埃等离子体物理的基本内容,包括尘埃等离子体的基本概念、研究方法、尘埃等离子体波动研究等。然后,本文主要研究了尘埃充电效应对尘埃声波的影响;尘埃强耦合效应对尘埃声波和尘埃声孤波的影响;尘埃极化力对尘埃声波和尘埃声孤波的影响。
[Abstract]:Plasma, as a typical electromagnetic medium, is characterized by rich fluctuations. The wave properties and nonlinear interaction in plasma have always been the core research content and application technical basis of plasma physics. A large number of observations show that there are charged dust particles in plasma environment, which widely exist in space, laboratory and industrial production. Obviously, the special properties of charged dust particles in dust plasma will significantly affect the wave-wave and wave-particle nonlinear interaction in the system, so it will show different physical properties from the classical plasma in many aspects. In this paper, based on the dust acoustic wave mode in dust plasma, the influence of non-classical characteristics in dust plasma on dust acoustic wave mode is studied from the point of view of fluidization theory. The results show that the physical images and related physical conclusions of the influence of non-classical characteristics on the acoustic mode of dust are given, which provides theoretical support and guidance for the interpretation of fine observation and experimental results. In this paper, the basic contents of dust plasma physics are introduced, including the basic concept of dust plasma, research methods, dust plasma fluctuation research and so on. Then, this paper mainly studies the influence of dust charging effect on dust acoustic wave, the effect of dust strong coupling effect on dust acoustic wave and dust acoustic solitary wave, and the influence of dust polarization force on dust acoustic wave and dust acoustic solitary wave.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P155.2
本文编号：2476154
[Abstract]:Plasma, as a typical electromagnetic medium, is characterized by rich fluctuations. The wave properties and nonlinear interaction in plasma have always been the core research content and application technical basis of plasma physics. A large number of observations show that there are charged dust particles in plasma environment, which widely exist in space, laboratory and industrial production. Obviously, the special properties of charged dust particles in dust plasma will significantly affect the wave-wave and wave-particle nonlinear interaction in the system, so it will show different physical properties from the classical plasma in many aspects. In this paper, based on the dust acoustic wave mode in dust plasma, the influence of non-classical characteristics in dust plasma on dust acoustic wave mode is studied from the point of view of fluidization theory. The results show that the physical images and related physical conclusions of the influence of non-classical characteristics on the acoustic mode of dust are given, which provides theoretical support and guidance for the interpretation of fine observation and experimental results. In this paper, the basic contents of dust plasma physics are introduced, including the basic concept of dust plasma, research methods, dust plasma fluctuation research and so on. Then, this paper mainly studies the influence of dust charging effect on dust acoustic wave, the effect of dust strong coupling effect on dust acoustic wave and dust acoustic solitary wave, and the influence of dust polarization force on dust acoustic wave and dust acoustic solitary wave.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P155.2
【参考文献】
相关期刊论文 前1条
1 洪学仁,段文山,孙建安,石玉仁,吕克璞;非均匀尘埃等离子体中孤子的传播[J];物理学报;2003年11期
，本文编号：2476154
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