Simulation of Coulomb Collisions in Plasma Accelerators for Space Applications
|
|
- Claire Summers
- 6 years ago
- Views:
Transcription
1 Simulation of Coulomb Collisions in Plasma Accelerators for Space Applications D. D Andrea 1, W.Maschek 1 and R. Schneider 2 Vienna, May 6 th Institut for Institute for Nuclear and Energy Technologies - Research Center Karlsruhe 2 Institut for Pulsed Power and Microwave Technology - Research Center Karlsruhe
2 Contents Introduction to space propulsion SIMPLEX An example of applied accelerator Physical and numerical model A time scaling analysis for : Intra-species Inter-species Coupled case Future works
3 Introduction: Space Propulsion Spacecraft acceleration generated by propellant discharge: T = dm / dt v e Rate of expulsion of propellant W = dm / dt g 0 Specific impulse: I sp = T / W = ve / g 0 For constant exhaust velocity: m 0 v = ve ln m f
4 The Electric Propulsion Acceleration of propulsion gases by electrical heating and/or by electric and magnetic body forces. Electrothermal : electrical heat addition and expansion through nozzle. Resistojets and Arcjets. Electrostatic : application of electric fields. Ion Thrusters and Colloid Thrusters Electromagnetic : application of electromagnetic fields. Hall Thrusters, Pulsed Plasma Thrusters(PPT) and Magnetoplasmadynamic Thrusters (MPDT). Robert G. Jahn - Physics of Electric Propulsion.(1968)
5 To the Moon with SIMPLEX Stuttgart Instationary MagnetoPlasmadynamic thruster for Lunar Exploration Pictures from Uni-Stuttgart website Pulse time: Peak current: Capacitor voltage: 8 µs 40 ka 2000 V Exhaust velocity: Mean thrust: Mass ablated/bit 12 km/s 1,4 mn 160 µg
6 Physical Mathematical Modelling Electrical quasi neutrality conditions Non-equilibrium conditions in several degrees of freedom. Failure of continuous models,e.g. Fluid models Presence of external and self-induced E-B fields Charged-Neutral collisions and Chemical reactions Elastic charged particle interactions
7 Intra-Species Collision: Governing Equations δf δt α Col = v 2 ( α ) 1 ( α ) [ F f ] + : D α 2 v v t [ f ] α Fokker-Planck Equation (FP) KEY QUANTITIES: THE ROSENBLTUH POTENTIALS F t D ( α ) ( α ) H v β 2 G v v β Dynamical Friction Diffusion Tensor H G β β + ( x, w, t ) m f α β 3 = d w µ v w αβ + ( x, w, t ) 3 = v w f d w β r r V = V ( t ) THE STOCHASTIC DIFFERENTIAL EQUATION (SDE) Stochastic variable; satisfying the SDE: r r with transition probability P P 2 Euler scheme r V r = V r + F t t + B r dv ( n+1 ) ( n) ( n) ( n) ( n+1) p ( V, t / V t ) 2 0, p 0 t r η r ( t) = F dt + B dw ( t) fullfills a FP equation p t t D = r t t B B T
8 Numerical Framework: PIC Scheme Evaluate the key-quantities on the grid Interpolate the coefficients onto the particles Reconstruct the distribution function at t n+1 = t n + t Push the particles in velocity space
9 Time Scaling Analysis Delta vs. Maxwell Possible approaches: FULLY SELF-CONSISTENT Mutual Influence of beam and background particles TEST-PARTICLE ANSATZ Separation of friction and diffusion effects unrealstic NOT SELF-CONSISTENT Stochastical modelling of beam particles evolution with fixed background Maxwell
10 Moments Analysis Mean value investigation Variance investigation Mean value time evolution for selfconsistent and reference simulation Transversal variance time evolution for self-consistent and reference simulation
11 Inter-Species Collision: Governing Equations Preliminaries: c >> m << 1 c = c r const. e w X e m X Friction and Diffusion known from the simple form of: H ˆ 2 SDE becomes:, where: α r ( c t) c and G ( c t) X = 1 r, X, = dc t First and second moment time development : ˆ e e = ( ) = α C( t) dt +α H dw ( t) ( ex ) 3 2 = ΓP n X c and H t c t r = I t cc ˆˆ T M i = e α 2 ( t t ) 0 M 0, P ij 1 1 = δij + Pij ( t0) ij exp 3 3 δ 3 α { 2 ( t t )} 0
12 (e,x) Collision lectron beam impinging a background Ion distribution: V ( e) ( e) ( e) x, 0 = V, V y,0 = 0, V z, 0 = 0 0 Final electron distribution function Moment temporal evolution
13 Coupled Calculations:(e,X) + (e,e) Collision Non-equilibrium electrons impinging a background Ion distribution: Initial electron distribution function Moment temporal evolution
14 Coupled Calculations:(e,X) + (e,e) Collision Non-equilibrium electrons impinging a background Ion distribution: Initial electron distribution function Moments temporal evolution
15 Comparison Comparison between the mean value decay for the x-direction of the velocity in the (e-x) case and the coupled case (e-e)+ (e-x) Delay in the coupled case due to 2 non constant α
16 Summary and Conclusions Development of a three dimensional, self-consistent code for Coulomb collisions simulations Qualitative time scaling analysis performed for intra- and inter-species case Comparison with coupled calculation indicate the fundamental role of the momentum transfer collision frequency Coupling with a Maxwell-Vlasov solver will give a better insight of the influence of the electromagntic fields, external and self-generated
Electric Rocket Engine System R&D
Electric Rocket Engine System R&D In PROITERES, a powered flight by an electric rocket engine is planed; that is, orbital transfer will be carried out with a pulsed plasma thruster (PPT). We introduce
More informationElectric Propulsion. An short introduction to plasma and ion spacecraft propulsion. S. Barral. Instytut Podstawowych Problemów Techniki - PAN
Electric Propulsion An short introduction to plasma and ion spacecraft propulsion S. Barral Instytut Podstawowych Problemów Techniki - PAN sbarral@ippt.gov.pl S. Barral (IPPT-PAN) Electric Propulsion 1
More informationMonte Carlo Collisions in Particle in Cell simulations
Monte Carlo Collisions in Particle in Cell simulations Konstantin Matyash, Ralf Schneider HGF-Junior research group COMAS : Study of effects on materials in contact with plasma, either with fusion or low-temperature
More information11.1 Survey of Spacecraft Propulsion Systems
11.1 Survey of Spacecraft Propulsion Systems 11.1 Survey of Spacecraft Propulsion Systems In the progressing Space Age, spacecrafts such as satellites and space probes are the key to space exploration,
More informationKinetic Solvers with Adaptive Mesh in Phase Space for Low- Temperature Plasmas
Kinetic Solvers with Adaptive Mesh in Phase Space for Low- Temperature Plasmas Vladimir Kolobov, a,b,1 Robert Arslanbekov a and Dmitry Levko a a CFD Research Corporation, Huntsville, AL 35806, USA b The
More informationHigh-Power Plasma Propulsion at NASA-MSFC
High-Power Plasma Propulsion at NASA-MSFC January 2012 Dr. Kurt Polzin (kurt.a.polzin@nasa.gov) Propulsion Research and Development Laboratory NASA - Marshall Space Flight Center Basics of Rocketry Rocket
More informationElectric Propulsion Survey: outlook on present and near future technologies / perspectives. by Ing. Giovanni Matticari
Electric Propulsion Survey: outlook on present and near future technologies / perspectives by Ing. Giovanni Matticari Electric Propulsion: a concrete reality on many S/C GOCE ARTEMIS ARTEMIS SMART-1 EP
More informationAn introduction to the plasma state in nature and in space
An introduction to the plasma state in nature and in space Dr. L. Conde Departamento de Física Aplicada E.T.S. Ingenieros Aeronáuticos Universidad Politécnica de Madrid The plasma state of condensed matter
More informationContents. Preface... xvii
Contents Preface... xvii CHAPTER 1 Idealized Flow Machines...1 1.1 Conservation Equations... 1 1.1.1 Conservation of mass... 2 1.1.2 Conservation of momentum... 3 1.1.3 Conservation of energy... 3 1.2
More informationAn advanced simulation code for Hall effect thrusters
An advanced simulation code for Hall effect thrusters P. Fajardo, M. Merino, E. Ahedo pablo.fajardo@uc3m.es EPIC Workshop October 2017, Madrid Contents Plasmas and Space propulsion Team (EP2-UC3M) CHEOPS
More informationElectric Propulsion Research and Development at NASA-MSFC
Electric Propulsion Research and Development at NASA-MSFC November 2014 Early NEP concept for JIMO mission Dr. Kurt Polzin (kurt.a.polzin@nasa.gov) Propulsion Research and Development Laboratory NASA -
More informationxkcd.com It IS about physics. It ALL is.
xkcd.com It IS about physics. It ALL is. Introduction to Space Plasmas! The Plasma State What is a plasma? Basic plasma properties: Qualitative & Quantitative Examples of plasmas! Single particle motion
More informationIV. Rocket Propulsion Systems. A. Overview
IV. Rocket Propulsion Systems A. Overview by J. M. Seitzman for AE 4451 Jet and Rocket Propulsion Seitzman Rocket Overview-1 Rocket Definition Rocket Device that provides thrust to a vehicle by accelerating
More informationPlasma Propulsion in Space Eduardo Ahedo
Plasma Propulsion in Space Eduardo Ahedo Professor of Aerospace Engineering Plasmas and Space Propulsion Team Universidad Carlos III de Madrid, Spain Outline Space propulsion has been the domain of chemical
More informationPhysical models for plasmas II
Physical models for plasmas II Dr. L. Conde Dr. José M. Donoso Departamento de Física Aplicada. E.T.S. Ingenieros Aeronáuticos Universidad Politécnica de Madrid Physical models,... Plasma Kinetic Theory
More informationThe electron diffusion into the channel of stationary plasma thruster
The electron diffusion into the channel of stationary plasma thruster IEPC-215-397 Presented at Joint Conference of 3th International Symposium on Space Technology and Science 34th International Electric
More information14. Energy transport.
Phys780: Plasma Physics Lecture 14. Energy transport. 1 14. Energy transport. Chapman-Enskog theory. ([8], p.51-75) We derive macroscopic properties of plasma by calculating moments of the kinetic equation
More informationXXIV. Erfahrungsaustausch Oberflächentechnologie mit Plasma- und Ionenstrahlprozessen. Mühlleithen / Vogtland
UNIVERSITY OF APPLIED SCIENCES XXIV. Erfahrungsaustausch Oberflächentechnologie mit Plasma- und Ionenstrahlprozessen Mühlleithen / Vogtland Status Report: Numerical 3D Ion Extraction Code incorporated
More informationHelicon Plasma Thruster Persepective and At University of Padua
Helicon Plasma Thruster Persepective and Development status and future development At University of Padua D.Pavarin, M.Manente, F.Trezzolani, A.Selmo, M.Magarotto, E.Toson Outline Helicon Thruster overview
More informationAAE SOLID ROCKET PROPULSION (SRP) SYSTEMS
7. SOLID ROCKET PROPULSION (SRP) SYSTEMS Ch7 1 7.1 INTRODUCTION 7.1 INTRODUCTION Ch7 2 APPLICATIONS FOR SRM APPLICATIONS FOR SRM Strap-On Boosters for Space Launch Vehicles, Upper Stage Propulsion System
More informationPropulsion Systems Design MARYLAND. Rocket engine basics Survey of the technologies Propellant feed systems Propulsion systems design
Design Rocket engine basics Survey of the technologies Propellant feed systems Propulsion systems design 2005 David L. Akin - All rights reserved http://spacecraft.ssl.umd.edu Overview of the Design Process
More informationLecture 2. Introduction to plasma physics. Dr. Ashutosh Sharma
Preparation of the concerned sectors for educational and R&D activities related to the Hungarian ELI project Ion acceleration in plasmas Lecture 2. Introduction to plasma physics Dr. Ashutosh Sharma Zoltán
More informationAnalyses of Teflon Surface Charring and Near Field Plume of a Micro-Pulsed Plasma Thruster
Analyses of Teflon Surface Charring and Near Field Plume of a Micro-Pulsed Plasma Thruster Michael Keidar and Iain D. Boyd Department of Aerospace Engineering, University of Michigan, Ann Arbor MI 48109
More information12. MHD Approximation.
Phys780: Plasma Physics Lecture 12. MHD approximation. 1 12. MHD Approximation. ([3], p. 169-183) The kinetic equation for the distribution function f( v, r, t) provides the most complete and universal
More informationStochastic Particle Methods for Rarefied Gases
CCES Seminar WS 2/3 Stochastic Particle Methods for Rarefied Gases Julian Köllermeier RWTH Aachen University Supervisor: Prof. Dr. Manuel Torrilhon Center for Computational Engineering Science Mathematics
More informationWaves in plasma. Denis Gialis
Waves in plasma Denis Gialis This is a short introduction on waves in a non-relativistic plasma. We will consider a plasma of electrons and protons which is fully ionized, nonrelativistic and homogeneous.
More informationImprovement of Propulsion Performance by Gas Injection and External Magnetic Field in Electrodeless Plasma Thrusters
Improvement of Propulsion Performance by Gas Injection and External Magnetic Field in Electrodeless Plasma Thrusters IEPC-217-249 Presented at the th International Electric Propulsion Conference Georgia
More informationLangmuir Probe Measurements of a Magnetoplasmadynamic Thruster
Langmuir Probe Measurements of a Magnetoplasmadynamic Thruster IEPC-201-187 Presented at the rd International Electric Propulsion Conference, The George Washington University Washington, D.C. USA Yang
More informationGuangye Chen, Luis Chacón,
JIFT workshop! Oct. 31, 2014 New Orleans, LA.! Guangye Chen, Luis Chacón, CoCoMANs team Los Alamos National Laboratory, Los Alamos, NM 87545, USA gchen@lanl.gov 1 Los Alamos National Laboratory Motivation
More informationPROTEAN : Neutral Entrainment Thruster Demonstration
PROTEAN : Neutral Entrainment Thruster Demonstration Dr. David Kirtley Dr. George Votroubek Dr. Anthony Pancotti Mr. Michael Pfaff Mr. George Andexler MSNW LLC - Principle Investigator -Dynamic Accelerator
More informationMARYLAND. Rocket engine basics Survey of the technologies Propellant feed systems Propulsion systems design U N I V E R S I T Y O F
Rocket engine basics Survey of the technologies Propellant feed systems Propulsion systems design 2004 David L. Akin - All rights reserved http://spacecraft.ssl. umd.edu Overview of the Design Process
More informationRockets, Missiles, and Spacecrafts
36 1 Rockets, Missiles, and Spacecrafts 2 Chinese used rockets in the 12 th century AD against the Mongol attacks. In India Tipu Sultan used rockets against the British army in the 18 th century. The modern
More informationApplied-Field MPD Thruster with Magnetic-Contoured Anodes
Applied-Field MPD Thruster with Magnetic-Contoured s IEPC-215-169 Presented at Joint Conference of 3th International Symposium on Space Technology and Science 34th International Electric Propulsion Conference
More informationThe Electromagnetic Wave Electric Field Force Thruster
The Electromagnetic Wave Electric Field Force Thruster Author: Zhixian Lin November 15, 2015 i Contents Abstract... 1 1. The Principle of Electromagnetic Wave Electric Field Force Thruster... 2 2. The
More informationReview of Micro-Propulsion Ablative Devices
Review of Micro-Propulsion Ablative Devices Michael Keidar and Iain D. Boyd Aerospace Engineering, University of Michigan Ann Arbor 48109 USA Funded by Air Force Office of Scientific Research through grant
More informationExperimental Study of a 1-MW-Class Quasi-Steady-State Self-Field Magnetoplasmadynamic Thruster
Experimental Study of a 1-MW-Class Quasi-Steady-State Self-Field Magnetoplasmadynamic Thruster IEPC-2013-234 1 Kenji Miyazaki and 2 Syun Takenaka Tokai University, Hiratsuka, Kanagawa 259-1292, Japan 3
More informationPlasma Behaviours and Magnetic Field Distributions of a Short-Pulse Laser-Assisted Pulsed Plasma Thruster
Plasma Behaviours and Magnetic Field Distributions of a Short-Pulse Laser-Assisted Pulsed Plasma Thruster IEPC-2015-91325 Presented at Joint Conference of 30th International Symposium on Space Technology
More informationAcceleration of a plasma flow in a magnetic Laval nozzle applied to an MPD thruster
Acceleration of a plasma flow in a magnetic Laval nozzle applied to an MPD thruster IEPC-5-68 Presented at Joint Conference of 3th International Symposium on Space Technology and Science 34th International
More informationThree-dimensional Particle-In-Cell Simulation of a Pulsed Plasma Thruster: Modeling and Challenges
Three-dimensional Particle-In-Cell Simulation of a Pulsed Plasma Thruster: Modeling and Challenges IEPC-2011-116 Presented at the 32 nd International Electric Propulsion Conference, Wiesbaden, Germany
More informationKinetic modelling of the jet extraction mechanism in spherical IEC devices
Kinetic modelling of the jet extraction mechanism in spherical IEC devices Type of activity: Standard study 1 Background & Study Motivation 1.1 Introduction Inertial Electrostatic Confinement (IEC) devices
More informationRocket Propulsion Overview
Rocket Propulsion Overview Seitzman Rocket Overview-1 Rocket Definition Rocket Device that provides thrust to a vehicle by accelerating some matter (the propellant) and exhausting it from the rocket Most
More informationSpace Plasma Physics Thomas Wiegelmann, 2012
Space Plasma Physics Thomas Wiegelmann, 2012 1. Basic Plasma Physics concepts 2. Overview about solar system plasmas Plasma Models 3. Single particle motion, Test particle model 4. Statistic description
More informationComputer modeling and comparison with diagnostic results of a downscaled High Efficiency Multi Stage Plasma Thruster
www.dlr.de Chart 1 Computer modeling and comparison with diagnostic results of a downscaled High Efficiency Multi Stage Plasma Thruster T. Brandt 1,3+, Th. Trottenberg 3, R. Groll 2, F. Jansen 1, Fr. Hey
More informationLandau Damping Simulation Models
Landau Damping Simulation Models Hua-sheng XIE (u) huashengxie@gmail.com) Department of Physics, Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, P.R.China Oct. 9, 2013
More informationInfluence of Electrode Configuration of a Liquid Propellant PPT on its Performance
Influence of Electrode Configuration of a Liquid Propellant PPT on its Performance IEPC-- /ISTS--b- Presented at Joint Conference of th International Symposium on Space Technology and Science th International
More informationPerformance Characteristics of Electrothermal Pulsed Plasma Thrusters with Insulator-Rod-Arranged Cavities and Teflon-Alternative Propellants
Performance Characteristics of Electrothermal Pulsed Plasma Thrusters with Insulator-Rod-Arranged Cavities and Teflon-Alternative Propellants IEPC-2007-337 Presented at the 30 th International Electric
More informationDevelopment of Microwave Engine
Development of Microwave Engine IEPC-01-224 Shin SATORI*, Hiroyuki OKAMOTO**, Ted Mitsuteru SUGIKI**, Yoshinori AOKI #, Atsushi NAGATA #, Yasumasa ITO** and Takayoshi KIZAKI # * Hokkaido Institute of Technology
More informationDevelopment of a hybrid PIC code for the simulation of plasma spacecraft interactions
Development of a hybrid PIC code for the simulation of plasma spacecraft interactions Matthieu Masselin Master of Science Thesis Stockholm, Sweden, 2013 XR-EE-SPP 2012:014 Acknowledgements I would like
More informationThe Electromagnetic Wave Electric Field Force Thruster with The New Understanding of Electromagnetic Momentum Conservation Equation
The Electromagnetic Wave Electric Field Force Thruster with The New Understanding of Electromagnetic Momentum Conservation Equation Author: Zhixian Lin November 15, 2015 i Contents Abstract... 1 1. The
More informationMacroscopic plasma description
Macroscopic plasma description Macroscopic plasma theories are fluid theories at different levels single fluid (magnetohydrodynamics MHD) two-fluid (multifluid, separate equations for electron and ion
More informationProgress on Aerospace Applications of the NIMROD Code
Progress on Aerospace Applications of the NIMROD Code Alfonso G. Tarditi NASA Johnson Space Center, Houston, TX & University of Houston-Clear Lake, Houston, TX Plasma MHD Aerospace Applications Chemical/MHD
More informationNumerical Simulation of Microwave Plasma Thruster Flow
Numerical Simulation of Microwave Plasma Thruster Flow IEPC-2007-211 Presented at the 30 th International Electric Propulsion Conference, Florence, Italy September 17-20, 2007 Mao-lin Chen *, Mao Gen-wang,
More informationThe Pennsylvania State University. The Graduate School. College of Engineering LIFE ASSESSMENT OF A MINIATURE MICROWAVE-FREQUENCY ION THRUSTER
The Pennsylvania State University The Graduate School College of Engineering LIFE ASSESSMENT OF A MINIATURE MICROWAVE-FREQUENCY ION THRUSTER A Thesis in Aerospace Engineering by Sang Chieh Hsieh 2018 Sang
More informationGeometry optimization and effect of gas propellant in an electron cyclotron resonance plasma thruster
Geometry optimization and effect of gas propellant in an electron cyclotron resonance plasma thruster IEPC-2017-378 Presented at the 35th International Electric Propulsion Conference Georgia Institute
More information3. Write a detailed note on the following thrust vector control methods:
Code No: R05322103 Set No. 1 1. Starting from the first principles and with the help of neatly drawn velocity triangles obtain the following relationship: Ψ = 2 Φ (tan β 2 + tan β 3 ) where Ψ is the blade
More informationPhysique des plasmas radiofréquence Pascal Chabert
Physique des plasmas radiofréquence Pascal Chabert LPP, Ecole Polytechnique pascal.chabert@lpp.polytechnique.fr Planning trois cours : Lundi 30 Janvier: Rappels de physique des plasmas froids Lundi 6 Février:
More informationEvaluation of Quasi-Steady Operation of Applied Field 2D- MPD Thruster using Electric Double-Layer Capacitors
Evaluation of Quasi-Steady Operation of Applied Field 2D- MPD Thruster using Electric Double-Layer Capacitors IEPC-2017-208 Presented at the 35th International Electric Propulsion Conference Georgia Institute
More informationPropulsion Systems Design
Propulsion Systems Design Rocket engine basics Survey of the technologies Propellant feed systems Propulsion systems design 1 2011 David L. Akin - All rights reserved http://spacecraft.ssl.umd.edu Propulsion
More informationIon Induced Beam disruption Mechanism
Ion Induced Beam disruption Mechanism C. Vermare CEA, Polygone d Expérimentation de Moronvilliers, France H. Davis, D.C. Moir, R. Olson Los Alamos National Laboratory, NM, USA T. Hughes Mission Research
More informationDissipative nuclear dynamics
Dissipative nuclear dynamics Curso de Reacciones Nucleares Programa Inter universitario de Fisica Nuclear Universidad de Santiago de Compostela March 2009 Karl Heinz Schmidt Collective dynamical properties
More informationLectures on basic plasma physics: Introduction
Lectures on basic plasma physics: Introduction Department of applied physics, Aalto University Compiled: January 13, 2016 Definition of a plasma Layout 1 Definition of a plasma 2 Basic plasma parameters
More informationxkcd.com It IS about physics. It ALL is.
xkcd.com It IS about physics. It ALL is. Introduction to Space Plasmas The Plasma State What is a plasma? Basic plasma properties: Qualitative & Quantitative Examples of plasmas Single particle motion
More informationLecture Note 1. 99% of the matter in the universe is in the plasma state. Solid -> liquid -> Gas -> Plasma (The fourth state of matter)
Lecture Note 1 1.1 Plasma 99% of the matter in the universe is in the plasma state. Solid -> liquid -> Gas -> Plasma (The fourth state of matter) Recall: Concept of Temperature A gas in thermal equilibrium
More informationAdvances in the kinetic simulation of microwave absorption in an ECR thruster
Advances in the kinetic simulation of microwave absorption in an ECR thruster IEPC-2017-361 Presented at the 35th International Electric Propulsion Conference Georgia Institute of Technology Atlanta, Georgia
More informationImproved Target Method for AF-MPDT Thrust Measurement
Improved Target Method for AF-MPDT Thrust Measurement IEPC-2015-172 Presented at Joint Conference of 30th International Symposium on Space Technology and Science 34th International Electric Propulsion
More informationMagBeam: R. Winglee, T. Ziemba, J. Prager, B. Roberson, J Carscadden Coherent Beaming of Plasma. Separation of Power/Fuel from Payload
MagBeam: R. Winglee, T. Ziemba, J. Prager, B. Roberson, J Carscadden Coherent Beaming of Plasma Separation of Power/Fuel from Payload Fast, cost-efficient propulsion for multiple missions Plasma Propulsion
More informationIntroduction. Chapter Plasma: definitions
Chapter 1 Introduction 1.1 Plasma: definitions A plasma is a quasi-neutral gas of charged and neutral particles which exhibits collective behaviour. An equivalent, alternative definition: A plasma is a
More informationPlasmas as fluids. S.M.Lea. January 2007
Plasmas as fluids S.M.Lea January 2007 So far we have considered a plasma as a set of non intereacting particles, each following its own path in the electric and magnetic fields. Now we want to consider
More informationSergey O. Tverdokhlebov
IEPC-93-232 2140 Study of Double-Stage Anode Layer Thruster Using Inert Gases Sergey O. Tverdokhlebov Central Research Institute of Machine Building Kaliningrad (Moscow Region), Russia Abstract Pt - total
More informationThe dynamics of small particles whose size is roughly 1 µmt or. smaller, in a fluid at room temperature, is extremely erratic, and is
1 I. BROWNIAN MOTION The dynamics of small particles whose size is roughly 1 µmt or smaller, in a fluid at room temperature, is extremely erratic, and is called Brownian motion. The velocity of such particles
More informationParticle Simulation of Hall Thruster Plumes in the 12V Vacuum Chamber
Particle Simulation of Hall Thruster Plumes in the 12V Vacuum Chamber IEPC-2005-138 Presented at the 29 th International Electric Propulsion Conference, Princeton University, Iain D. Boyd 1, Quanhua Sun
More informationFlight Demonstration of Electrostatic Thruster Under Micro-Gravity
Flight Demonstration of Electrostatic Thruster Under Micro-Gravity Shin SATORI*, Hiroyuki MAE**, Hiroyuki OKAMOTO**, Ted Mitsuteru SUGIKI**, Yoshinori AOKI # and Atsushi NAGATA # * Hokkaido Institute of
More informationDISCHARGE CHARACTERISTICS OF A LASER-ASSISTED PLASMA THRUSTER
DISCHARGE CHARACTERISTICS OF A LASER-ASSISTED PLASMA THRUSTER Hideyuki Horisawa *, Masatoshi Kawakami *, Wun-Wei Lin *, Akira Igari *, and Itsuro Kimura # * Department of Aeronautics and Astronautics,
More informationKnowledge of basic math concepts is expected (conversions, units, trigonometry, vectors, etc.)
Topics for the Final Exam Knowledge of basic math concepts is expected (conversions, units, trigonometry, vectors, etc.) Chapter 2. displacement, velocity, acceleration motion in one dimension with constant
More informationOne dimensional hybrid Maxwell-Boltzmann model of shearth evolution
Technical collection One dimensional hybrid Maxwell-Boltzmann model of shearth evolution 27 - Conferences publications P. Sarrailh L. Garrigues G. J. M. Hagelaar J. P. Boeuf G. Sandolache S. Rowe B. Jusselin
More informationNumerical Simulation of a MW-Class Self Field Magnetoplasmadynamic Thruster using the MACH 2 Code
Numerical Simulation of a MW-Class Self Field Magnetoplasmadynamic Thruster using the MACH Code IEPC-5-6 Presented at the 9 th International Electric Propulsion Conference, Princeton University, October
More informationTwo-Dimensional Numerical Simulation of Coaxial APPT
Two-Dimensional Numerical Simulation of Coaxial APPT G.A.Popov esearch Institute of Applied Mechanics and Electrodynamics, 4, Volokolamskoye shosse, Moscow, 158, ussia, (095)158-00-0, e-mail: riame@socol.ru
More informationFor a given mass flow ṁ and thrust F, we would like to minimize the running power P. Define a thruster efficiency, P = I a V a (2) V a
Session : Hall Thruster Efficiency For a given mass flow ṁ and thrust F, we would like to minimize the running power P. Define a thruster efficiency, F 2 η = (1) 2ṁP where F 2 /2ṁ is the minimum required
More informationA Course in Advanced Space
AlAA 94-31 12 A Course in Advanced Space Propulsion at The University of Michigan Terry Kammash Department of Nuclear Engineering The University of Michigan Ann Arbor, MI 48109 30th AIANASMWSAEIASEE Joint
More information(b) Analyzed magnetic lines Figure 1. Steady state water-cooled MPD thruster.
A. MPD thruster In this study, as one of the In-Space Propulsion projects by JAXA (Japan Aerospace exploration Agency), a practical MPD propulsion system was investigated. We planned to develop MPD thrusters
More informationParticle-In-Cell Simulations of a Current-Free Double Layer
Particle-In-Cell Simulations of a Current-Free Double Layer S. D. Baalrud 1, T. Lafleur, C. Charles and R. W. Boswell American Physical Society Division of Plasma Physics Meeting November 10, 2010 1Present
More informationAMSC 663 Project Proposal: Upgrade to the GSP Gyrokinetic Code
AMSC 663 Project Proposal: Upgrade to the GSP Gyrokinetic Code George Wilkie (gwilkie@umd.edu) Supervisor: William Dorland (bdorland@umd.edu) October 11, 2011 Abstract Simulations of turbulent plasma in
More informationModeling and Simulation of Plasma Based Applications in the Microwave and RF Frequency Range
Modeling and Simulation of Plasma Based Applications in the Microwave and RF Frequency Range Dr.-Ing. Frank H. Scharf CST of America What is a plasma? What is a plasma? Often referred to as The fourth
More informationA review of plasma thruster work at the Australian National University
A review of plasma thruster work at the Australian National University IEPC-2015-90850 Presented at Joint Conference of 30th International Symposium on Space Technology and Science 34th International Electric
More informationFigure 1.1: Ionization and Recombination
Chapter 1 Introduction 1.1 What is a Plasma? 1.1.1 An ionized gas A plasma is a gas in which an important fraction of the atoms is ionized, so that the electrons and ions are separately free. When does
More informationNew electric propulsion technologies investigation by simulation
New electric propulsion technologies investigation by simulation Mario Merino Equipo de Propulsión Espacial por Plasmas (EP2) Universidad Politécnica de Madrid (UPM) Contents The EP2 group and their activities
More informationThe Integrated Structural Electrodynamic Propulsion (ISEP) Experiment
The Integrated Structural Electrodynamic Propulsion (ISEP) Experiment Nestor Voronka, Robert Hoyt, Tyrel Newton, Ian Barnes Brian Gilchrist (UMich( UMich), Keith Fuhrhop (UMich) TETHERS UNLIMITED, INC.
More informationUltra-Cold Plasma: Ion Motion
Ultra-Cold Plasma: Ion Motion F. Robicheaux Physics Department, Auburn University Collaborator: James D. Hanson This work supported by the DOE. Discussion w/ experimentalists: Rolston, Roberts, Killian,
More informationCollege Physics 10th edition
College Physics 10th edition Raymond A. Serway and Chris Vuille Publisher: Cengage Learning Table of Contents PHY101 covers chapters 1-8 PHY102 covers chapters 9-25 Chapter 1: Introduction 1.1: Standards
More informationDevelopment of an Alternating Electric Field Accelerator for Laser-Ablation Plasma Acceleration
Development of an Alternating Electric Field Accelerator for Laser-Ablation Plasma Acceleration IEPC-2015-91125 Presented at Joint Conference of 30th International Symposium on Space Technology and Science
More informationHelicon Plasma Thruster Experiment Controlling Cross-Field Diffusion within a Magnetic Nozzle
Helicon Plasma Thruster Experiment Controlling Cross-Field Diffusion within a Magnetic Nozzle IEPC-2013-163 Presented at the 33rd International Electric Propulsion Conference, The George Washington University
More informationComparison of SPT and HEMP thruster concepts from kinetic simulations
Comparison of SPT and HEMP thruster concepts from kinetic simulations K. Matyash, R. Schneider, A. Mutzke, O. Kalentev Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald, D-1749, Germany
More informationSimilarities and differences:
How does the system reach equilibrium? I./9 Chemical equilibrium I./ Equilibrium electrochemistry III./ Molecules in motion physical processes, non-reactive systems III./5-7 Reaction rate, mechanism, molecular
More informationGlobal Energy Transfer Model of Microwave Induced Plasma in a Microwave Electrothermal Thruster Resonant Cavity
Global Energy Transfer Model of Microwave Induced Plasma in a Microwave Electrothermal Thruster Resonant Cavity IEPC-2015-266/ISTS-2015-b-266 Presented at Joint Conference of 30th International Symposium
More informationK.P.2 Understand how objects are described based on their physical properties and how they are used.
Grade 2 Grade 1 Kindergarten K.P.1 Understand the positions and motions of objects and organisms observed in the environment. K.P.2 Understand how objects are described based on their physical properties
More informationOverview of Accelerated Simulation Methods for Plasma Kinetics
Overview of Accelerated Simulation Methods for Plasma Kinetics R.E. Caflisch 1 In collaboration with: J.L. Cambier 2, B.I. Cohen 3, A.M. Dimits 3, L.F. Ricketson 1,4, M.S. Rosin 1,5, B. Yann 1 1 UCLA Math
More informationLecture 4: The particle equations (1)
Lecture 4: The particle equations (1) Presenter: Mark Eric Dieckmann Department of Science and Technology (ITN), Linköping University, Sweden July 17, 2014 Overview We have previously discussed the leapfrog
More informationKINETIC DESCRIPTION OF MAGNETIZED TECHNOLOGICAL PLASMAS
KINETIC DESCRIPTION OF MAGNETIZED TECHNOLOGICAL PLASMAS Ralf Peter Brinkmann, Dennis Krüger Fakultät für Elektrotechnik und Informationstechnik Lehrstuhl für Theoretische Elektrotechnik Magnetized low
More informationFundamentals of wave kinetic theory
Fundamentals of wave kinetic theory Introduction to the subject Perturbation theory of electrostatic fluctuations Landau damping - mathematics Physics of Landau damping Unmagnetized plasma waves The plasma
More informationCHARACTERIZATION OF CURRENT SHEET EVOLUTION IN A PULSED ELECTROMAGNETIC ACCELERATOR
CHARACTERIZATION OF CURRENT SHEET EVOLUTION IN A PULSED ELECTROMAGNETIC ACCELERATOR J.W. Berkery and E.Y. Choueiri Electric Propulsion and Plasma Dynamics Laboratory Princeton University, Princeton, New
More information