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Showing 1 to 15 of 15 for “"Ion Thruster"”.
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Numerical modelling of a radio-frequency micro ion thruster
… for an inductively-coupled radio-frequency micro ion thruster. Methods of particle and energy balance are utilized for modeling the chamber plasma discharge. A transformer model is incorporated in the equations of energy balance for investigating the effect of plasma on the primary circuit and for …
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Thermal Modeling and Validation Testing of a Miniature Xenon Ion Thruster
<p>To support the research of miniature ion propulsion, Cal Poly's Miniature Xenon</p> <p>Ion (MiXI) thruster has been modeled and tested. Using ANSYS Fluent, a two-</p> <p>dimensional model of the transient thermal environment of MiXI-CP-V3 was</p> <p>created. Validation testing was conducted in …
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Numerical simulation of ion thruster plume backflow for spacecraft contamination assessment
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995.
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Experimental study of ion thruster operation with oxygen as the propellant
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1983.
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Prediction of the performance of an ion thruster using Buckminsterfullerene as propellant
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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Modeling of Ion Thruster Discharge Chamber Using 3D Particle-In-Cell Monte-Carlo-Collision Method
… is aimed toward developing a method to simulate ion thruster discharge chambers in a full three dimensional environment and to study the effect of discharge chamber size on ion thruster performance. The study focuses solely on ring-cusped thrusters that make use of Xenon for propellant and …
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Immersed Finite Element Particle-In-Cell Simulations of Ion Propulsion
… algorithm was developed for plasma simulations involving complex boundary conditions. The new algorithm is based on the three-dimensional immersed finite element method which is developed in this thesis, and a modified legacy particle-in-cell code. The model also applies a new meshing …
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Development of a Parallel Electrostatic PIC Code for Modeling Electric Propulsion
This thesis presents the parallel version of Coliseum, the Air Force Research Laboratory plasma simulation framework. The parallel code was designed to run large simulations on the world fastest supercomputers as well as home mode clusters. Plasma simulations are extremely computationally intensive …
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CHAOS: A multi-GPU PIC-DSMC solver for modeling gas and plasma flows
… modeling of gas and plasma-surface interactions is critical to understanding the complex kinetic processes that dominate the extreme environments of planetary entry and in-space propulsion. However, simulations of these systems that evolve over multiple length- and time-scales is …
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Experimental and Modeling Studies of Low-Energy Ion Sputtering for Ion Thrusters
… xenon-molybdenum (Xe+-Mo) sputtering yields for ion energies of 100 eV and less. Sputtering yield data at these energies are important for ion thruster design and lifetime prediction. The basic principles of sputtering phenomena are discussed. An overview of various popular types of experimental …
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Microthrusters based on the T5 and T6 hollow cathodes
… the development of a low power, low cost microthruster able to offer propellant savings over conventional alternatives and enable higher energy missions. Such a thruster would also be beneficial in the development of all-electric spacecraft whereby the normally separate reaction control system …
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Hybrid Chemical-Electric Propulsion Systems for CubeSats
As CubeSats have proved their benefits for missions ranging from Earth observation, communication, navigation, or science, miniaturized propulsion systems have been actively developed and demonstrated in-flight to support these applications. Propulsion systems are primarily divided into two main …
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Development of the DRACO ES-PIC code and Fully-Kinetic Simulation of Ion Beam Neutralization
… describes development of the DRACO plasma simulation code. DRACO is an electro-static (ES) code which uses the particle-in-cell (PIC) formulation to track plasma particles through a computational domain, and operates within the Air Force COLISEUM framework. The particles are tracked on a …
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On the identification and mitigation of life-limiting mechanisms of ionic liquid ion sources envisaged for propulsion of microspacecraft
Life-limiting processes affecting ionic liquid ion sources (ILIS) are investigated in this research, motivated by the development of ILIS for propulsion of microspacecraft and other industrial applications. Micropropulsion in particular has received considerable interest in recent years due to the …
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Divergent Plume Reduction of a High-Efficiency Multistage Plasma Thruster
<p>High Efficiency Multistage Plasma Thrusters (HEMPTs) are a relatively new form of electric propulsion that show promise for use on a variety of missions and have several advantages over their older EP competitors. One such advantage is their long predicted lifetime and minimal wall erosion due …