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Showing 1 to 13 of 13 for “"Dusty Plasma"”.
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A study of dusty plasma environment
… vehicles. One of such environment is the dusty plasma environment, where fine particles can be found in abundance. Dust particles interact with space plasma, get charged and are susceptible to the governing forces, hence are an important hazard to the space mission. This presents a …
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The study of overlapping sheath and dust particle structures in dusty plasma.
Complex (dusty) plasma consists of plasma and dust particles which vary in size from nanometer to millimeter in diameter. Complex plasma exists across many different environments, and can be found in environments from the cosmos to industry. Due to plasma fluxes to its surface, a dust particle …
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Characteristic measurements within a GEC rf Reference Cell.
… experiments performed within the complex (dusty) plasma community. The GEC cell, while providing for data comparison between systems due to its standardized design, does not exist without some variation between cells. In this work, two GEC rf Reference Cells located within the CASPER …
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Modeling of Plasma Irregularities Associated with Artificially Created Dusty Plasmas in the Near-Earth Space Environment
Plasma turbulence associated with the creation of an artificial dust layer in the earth's ionosphere is investigated. The Charged Aerosol Release Experiment (CARE) aims to understand the mechanisms for enhanced radar scatter from plasma irregularities embedded in dusty plasmas in space. Plasma …
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Plasma simulation with a dielectric object in the presence of an ion flow
Recent dusty plasma experiments have investigated the crystallization of dust grains near the edge of a plasma sheath. Some theories were proposed to explain the crystallization mechanisms. The purpose of this simulation work is to study the electrostatics of a dielectric object immersed in a …
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Charging of aggregate grains in astrophysical environments.
Plasma is a gas in which a portion of particles are ionized. Dust is a ubiquitous component of the universe, and when present in plasma, can form dusty plasma system. Dust in the plasma is generally charged due to the constant collisions with free moving electrons and ions. Cosmic dust can also be …
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Immersed Finite Element Particle-In-Cell Modeling of Surface Charging in Rarefied Plasmas
… is a fundamental interaction process in space plasma engineering. A three-dimensional Immersed Finite Element Particle-In-Cell (IFE-PIC) method is developed to model surface charging involving complex boundary conditions. This method extends the previous IFE-PIC algorithm to explicitly include …
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Collisionless ion collection by a sphere in a weakly magnetized plasma
The interaction between a probe and a plasma has been studied since the 1920s and the pioneering work of Mott-Smith and Langmuir [1], and is still today an active topic of experimental and theoretical research. Indeed an understanding of the current collection process by an electrode is relevant to …
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Large amplitude solitary waves in space plasmas
… electrostatic solitary waves in multispecies plasmas. In the following chapters we apply these general results to certain specific examples. In two-electron plasmas we consider electron-acoustic solitary waves in Chapter 3 and ion-acoustic solitons in Chapter 4. Then we consider dusty plasmas, …
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Fundamental studies of charge transfer in multiphase atmospheric pressure plasma reactors
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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New-Measurement Techniques to Diagnose Charged Dust and Plasma Layers in the Near-Earth Space Environment Using Ground-Based Ionospheric Heating Facilities
… />source region associated with mesospheric dusty space plasmas may be modulated by radio wave heating with ground-based ionospheric heating facilities. These experiments show great promise as a diagnostic for the associated dusty plasma in the Near-Earth Space Environment which is believed …
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Electron Temperature Enhancement Effects on Plasma Irregularities Associated with Charged Dust in the Earth's Mesosphere
… layer. To investigate the temporal behavior of plasma irregularities thought to produce PMSE, this work describes a new model that incorporates both finite diffusion time effects as well as dust charging. The hybrid model utilizes fluid ions described by continuity and momentum equations, …
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Analysis of Plasma Wave Irregularities Generated during Active Experiments in Near-Earth Space Environment
This work focuses on the analysis of plasma irregularities generated during two active space experiments: the injection of an artificial dust layer, and high-power radio waves. The objective of the "first experiment is to examine the effects of artificially created dust layers on the scatter of …