發(fā)布時間：2019-05-13 20:07

【摘要】：等離子體作為一種典型的電磁介質(zhì),其重要特點是蘊含著豐富的波動現(xiàn)象。等離子體中的波動性質(zhì)及其非線性相互作用一直是等離子體物理的核心研究內(nèi)容和應(yīng)用技術(shù)基礎(chǔ)。大量觀測表明,等離子體環(huán)境中普遍存在著帶電的塵埃顆粒,它廣泛存在于宇宙空間、實驗室和工業(yè)生產(chǎn)中。顯然,塵埃等離子體中的帶電塵埃顆粒所具有的特殊性質(zhì)將顯著影響系統(tǒng)中的波-波、波-粒非線性相互作用,因而將在許多方面表現(xiàn)出與經(jīng)典等離子體不同的物理特性。本文圍繞著塵埃等離子體中的塵埃聲波模,從流體論角度出發(fā),研究了塵埃等離子體中的非經(jīng)典特性對塵埃聲波模的影響。研究結(jié)果給出了非經(jīng)典特性對塵埃聲波模影響的物理圖像和相關(guān)物理結(jié)論,這為解釋精細觀測和實驗結(jié)果提供理論支持和指導(dǎo)。本文在緒論中介紹了塵埃等離子體物理的基本內(nèi)容,包括塵埃等離子體的基本概念、研究方法、塵埃等離子體波動研究等。然后,本文主要研究了塵埃充電效應(yīng)對塵埃聲波的影響;塵埃強耦合效應(yīng)對塵埃聲波和塵埃聲孤波的影響;塵埃極化力對塵埃聲波和塵埃聲孤波的影響。
[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.
【學(xué)位授予單位】：南昌大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P155.2

【參考文獻】

相關(guān)期刊論文 前1條

1 洪學(xué)仁,段文山,孫建安,石玉仁,呂克璞;非均勻塵埃等離子體中孤子的傳播[J];物理學(xué)報;2003年11期

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本文編號：2476154