Advances in stellarator gyrokinetics


 Amber Davidson
 1 years ago
 Views:
Transcription
1 Advances in stellarator gyrokinetics Per Helander and T. Bird, F. Jenko, R. Kleiber, G.G. Plunk, J.H.E. Proll, J. Riemann, P. Xanthopoulos 1
2 Background Wendelstein 7X will start experiments in 2015 optimised for low neoclassical transport Turbulence? Electrostatic instabilities: iontemperaturegradient (ITG) driven modes trappedelectron modes 2
3 W7X from above Bad curvature q (r) < 0 everywhere 3
4 Gyrokinetic stellarator codes EUTERPE global, particleincell, linear in 3D see poster TH/P449 by A.Mishchenko GENE radially local (fluxtube or fullsurface), continuum, nonlinear Both codes: electromagnetic, collisions etc. here: collisionless, electrostatic instabilities 4
5 Benchmark Linear ITG growth rate with Boltzmann electrons vs ion temperature gradient in W7X: 5
6 W7X vs LHD Global, linear ITG simulations in W7X (EUTERPE) W7X 6
7 W7X vs LHD Global, linear ITG simulations in LHD (EUTERPE) LHD 7
8 Nonlinear simulations ITG turbulence with Boltzmann electrons (GENE): rms potential fluctuations DIIID W7X 8
9 ITGs with Boltzmann electrons Nonlinear simulations with Boltzmann electrons (grad T e =0, r*=1/150): heat flux 9
10 Turbulent transport (ITG ae) So far, in W7X comparable to that in a typical tokamak, but softer : depends on r* 10
11 Trappedelectron modes Bad curvature trapped particles 11
12 Trappedelectron modes Instability requires where In an orbitconfining (omnigenous) stellarator 12
13 MaximumJ configurations But the precession frequency can be written so Stability is thus promoted by the maximumj condition Rosenbluth, Phys. Fluids
14 Physical picture The quantity, is an adiabatic invariant. E = energy. Hence, if a lowfrequency instability moves a particle radially, then implying that it costs energy to move a particle radially outward 14
15 Trappedparticle modes Theorem: collisionless trappedelectron and trappedion modes are stable if for all species a. Favourable bounceaveraged curvature. In a maximumj device, the precession drift is reversed compared with a tokamak no resonance with drift waves. 15
16 ITGs and TEMs with kinetic electrons Simulations with and without kinetic electrons (grad T e =grad T i ): growth rate for the most unstable wave number Boltzmann electrons Kinetic electrons Kinetic electrons are stabilising. 16
17 ITGs with kinetic electrons Simulations with and without kinetic electrons (grad T e =0): kinetic electrons in a flux tube 17
18 W7X, HSX and DIIID Another case: HSX simulations by Benjamin Faber, Madison 18
19 Conclusions ITG and TEM modes exist in stellarators, but display qualitative differences. turbulent fluctuations much less evenly distributed. Wendelstein 7X is, to some approximation, a maximumj device. most orbits have favourable bounceaveraged curvature Strongly stabilising for trappedparticle instabilities. ITG modes also benefit from stabilising action of the (kinetic) electrons. Less turbulent transport than in tokamaks? too early to say 19
20 Extra Material 20
21 Gyrokinetic calculation of TEMs Linear, fluxtube, electrostatic GENE simulations in DIIID and W7X no ion temperature gradient Proll, Xanthopoulos and Helander, submitted to PoP 21
22 ITGs with kinetic electrons Simulations with and without kinetic electrons (grad T e =0): growth rate for the most unstable wave number Boltzmann electrons Kinetic electrons Kinetic electrons are stabilising. Proll, Xanthopoulos and Helander, submitted to PoP 22
23 Another argument for stable TEMs In a maximumj device, the precession drift is reversed compared with a tokamak, since no resonance between precessing electrons and drift waves 23
24 Energy balance Linear, collisionless, electrostatic gyrokinetics. energy balance: Substitute the solution of the gyrokinetic equation for fastmoving partices at marginal stability 24
25 Outline of calculation Conventinal driftwave ordering Expanding in the inverse aspect ratio few trapped particles, gives electron driftwave frequency In next order, instability from waveparticle resonance only if impossible unless Helander et al, PPCF
26 Energy balance Linear, collisionless, electrostatic gyrokinetics in ballooning space: Multiply by J 0 f* and integrate over phase space. Energy balance: 26
27 Energy balance, cont d For fastmoving particles the energy transfer at marginal stability becomes Stabilising action if bounceaveraged curvature is favourable: 27
28 Algebra Conventinal driftwave ordering Expanding in the inverse aspect ratio few trapped particles, gives electron driftwave frequency In next order, instability from resonant denominator only if impossible unless Helander et al, PPCF
29 Trappedelectron modes TEMs result from overlap between bad curvature and trapping regions 29
30 Trappedelectron modes 30
31 Trappedelectron modes 31
32 Trappedelectron modes 32
33 Trappedelectron modes 33
Microturbulence in optimised stellarators
Q Josefine H. E. Proll, Benjamin J. Faber, Per Helander, Samuel A. Lazerson, Harry Mynick, and Pavlos Xanthopoulos Many thanks to: T. M. Bird, J. W. Connor, T. Go rler, W. Guttenfelder, G.W. Hammett, F.
More informationGyrokinetic Turbulence in Tokamaks and Stellarators
Gyrokinetic Turbulence in Tokamaks and Stellarators Frank Jenko IPP, Germany Acknowledgements: P. Xanthopoulos, F. Merz, T. Görler, M. Pueschel, D. Told; A. Boozer, G. Hammett, D. Mikkelsen, M. Zarnstorff,
More informationCoexistence and interference of multiple modes in plasma turbulence: Some recent GENE results
Coexistence and interference of multiple modes in plasma turbulence: Some recent GENE results Frank Jenko IPP Garching, Germany University of Ulm, Germany Acknowledgements: F. Merz, T. Görler, D. Told,
More informationGyrokinetic Transport Driven by Energetic Particle Modes
Gyrokinetic Transport Driven by Energetic Particle Modes by Eric Bass (General Atomics) Collaborators: Ron Waltz, Ming Chu GSEP Workshop General Atomics August 10, 2009 Outline I. Background Alfvén (TAE/EPM)
More informationTURBULENT TRANSPORT THEORY
ASDEX Upgrade MaxPlanckInstitut für Plasmaphysik TURBULENT TRANSPORT THEORY C. Angioni GYRO, J. Candy and R.E. Waltz, GA The problem of Transport Transport is the physics subject which studies the physical
More informationTowards Multiscale Gyrokinetic Simulations of ITERlike Plasmas
Frank Jenko MaxPlanckInstitut für Plasmaphysik, Garching Universität Ulm Towards Multiscale Gyrokinetic Simulations of ITERlike Plasmas 23 rd IAEA Fusion Energy Conference 1116 October 2010, Daejeon,
More informationMicrotearing Simulations in the Madison Symmetric Torus
Microtearing Simulations in the Madison Symmetric Torus D. Carmody, P.W. Terry, M.J. Pueschel  University of Wisconsin  Madison dcarmody@wisc.edu APS DPP 22 Overview PPCD discharges in MST have lower
More informationBounceaveraged gyrokinetic simulations of trapped electron turbulence in elongated tokamak plasmas
Bounceaveraged gyrokinetic simulations of trapped electron turbulence in elongated tokamak plasmas Lei Qi a, Jaemin Kwon a, T. S. Hahm a,b and Sumin Yi a a National Fusion Research Institute (NFRI), Daejeon,
More informationMicrostability of magnetically confined electronpositron plasmas
Microstability of magnetically confined electronpositron plasmas P. Helander MaxPlanckInstitut für Plasmaphysik, 17491 Greifswald, Germany It is shown that magnetically confined electronpositron plasmas
More informationDPG School The Physics of ITER Physikzentrum Bad Honnef, Energy Transport, Theory (and Experiment) Clemente Angioni
MaxPlanckInstitut für Plasmaphysik DPG School The Physics of ITER Physikzentrum Bad Honnef, 23.09.2014 Energy Transport, Theory (and Experiment) Clemente Angioni Special acknowledgments for material
More informationFlow, current, & electric field in omnigenous stellarators
Flow, current, & electric field in omnigenous stellarators Supported by U.S. D.o.E. Matt Landreman with Peter J Catto MIT Plasma Science & Fusion Center Oral 2O4 Sherwood Fusion Theory Meeting Tuesday
More informationStellarators. Dr Ben Dudson. 6 th February Department of Physics, University of York Heslington, York YO10 5DD, UK
Stellarators Dr Ben Dudson Department of Physics, University of York Heslington, York YO10 5DD, UK 6 th February 2014 Dr Ben Dudson Magnetic Confinement Fusion (1 of 23) Previously... Toroidal devices
More informationStability of a plasma confined in a dipole field
PHYSICS OF PLASMAS VOLUME 5, NUMBER 10 OCTOBER 1998 Stability of a plasma confined in a dipole field Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 Received
More informationSize Scaling and Nondiffusive Features of Electron Heat Transport in MultiScale Turbulence
Size Scaling and Nondiffusive Features of Electron Heat Transport in MultiScale Turbulence Z. Lin 1, Y. Xiao 1, W. J. Deng 1, I. Holod 1, C. Kamath, S. Klasky 3, Z. X. Wang 1, and H. S. Zhang 4,1 1 University
More informationOptimal design of 2D and 3D shaping for linear ITG stability*
Optimal design of 2D and 3D shaping for linear ITG stability* Mordechai N. Rorvig1, in collaboration with Chris C. Hegna1, Harry E. Mynick2, Pavlos Xanthopoulos3, and M. J. Pueschel1 1 University of
More informationInternational Workshop on the Frontiers of Modern Plasma Physics July On the Nature of Plasma Core Turbulence.
195343 International Workshop on the Frontiers of Modern Plasma Physics 1425 July 2008 On the Nature of Plasma Core Turbulence. F. Jenko MaxPlanck Institute fuer Plasmaphysik Garching bei Munchen Germany
More informationInteraction between EGAMs and turbulence in fullf gyrokinetic simulations
Interaction between EGAMs and turbulence in fullf gyrokinetic simulations David Zarzoso 1 X Garbet 1, Y Sarazin 1, V Grandgirard 1, J Abiteboul 1, A Strugarek 1,2, G DifPradalier 1, R Dumont 1, G Latu
More informationPer Helander. Contributions from: R. Kleiber, A. Mishchenko, J. Nührenberg, P. Xanthopoulos. Wendelsteinstraße 1, Greifswald
Rotation and zonal flows in stellarators Per Helander Wendelsteinstraße 1, 17491 Greifswald Contributions from: R. Kleiber, A. Mishchenko, J. Nührenberg, P. Xanthopoulos What is a stellarator? In a tokamak
More informationGTC Simulation of Turbulence and Transport in Tokamak Plasmas
GTC Simulation of Turbulence and Transport in Tokamak Plasmas Z. Lin University it of California, i Irvine, CA 92697, USA and GPSTTBP Team Supported by SciDAC GPSTTBP, GSEP & CPES Motivation Firstprinciples
More informationFinal Agenda HEPP Colloquium 2013
Final Agenda HEPP Colloquium 2013 Date 16 19 September 2012 Location The Lakeside BURGHOTEL zu Strausberg Gielsdorfer Chaussee 6 15344 Strausberg Monday, 13:00 14:00 Arrivals and lunch 14.00 14:15 Registration
More informationGlobal gyrokinetic modeling of geodesic acoustic modes and shear Alfvén instabilities in ASDEX Upgrade.
1 EX/P118 Global gyrokinetic modeling of geodesic acoustic modes and shear Alfvén instabilities in ASDEX Upgrade. A. Biancalani 1, A. Bottino 1, S. Briguglio 2, G.D. Conway 1, C. Di Troia 2, R. Kleiber
More informationGyrokinetic simulations including the centrifugal force in a strongly rotating tokamak plasma
Gyrokinetic simulations including the centrifugal force in a strongly rotating tokamak plasma F.J. Casson, A.G. Peeters, Y. Camenen, W.A. Hornsby, A.P. Snodin, D. Strintzi, G.Szepesi CCFE Turbsim, July
More informationGyrokinetic Simulations of Tokamak Microturbulence
Gyrokinetic Simulations of Tokamak Microturbulence W Dorland, Imperial College, London With key contributions from: S C Cowley F Jenko G W Hammett D Mikkelsen B N Rogers C Bourdelle W M Nevins D W Ross
More informationTurbulent Transport due to Kinetic Ballooning Modes in HighBeta Toroidal Plasmas
1 TH/P3 Turbulent Transport due to Kinetic allooning Modes in Higheta Toroidal Plasmas A. Ishizawa 1, S. Maeyama, T.H. Watanabe 1, H. Sugama 1 and N. Nakajima 1 1 National Institute for Fusion Science,
More informationGlobal gyrokinetic particle simulations with kinetic electrons
IOP PUBLISHING Plasma Phys. Control. Fusion 49 (2007) B163 B172 PLASMA PHYSICS AND CONTROLLED FUSION doi:10.1088/07413335/49/12b/s15 Global gyrokinetic particle simulations with kinetic electrons Z Lin,
More informationPlasma instabilities. Dr Ben Dudson, University of York 1 / 37
Plasma instabilities Dr Ben Dudson, University of York 1 / 37 Previously... Plasma configurations and equilibrium Linear machines, and Stellarators Ideal MHD and the GradShafranov equation Collisional
More informationGyrokinetic Turbulence Simulations at High Plasma Beta
Gyrokinetic Turbulence Simulations at High Plasma Beta Moritz J. Pueschel Thanks to F. Jenko and M. Kammerer Ringberg Theory Meeting, Nov. 18, 2008 1 Motivation 2 3 The Beta Parameter Definition β β e
More informationGyrokinetic Theory and Dynamics of the Tokamak Edge
ASDEX Upgrade Gyrokinetic Theory and Dynamics of the Tokamak Edge B. Scott Max Planck Institut für Plasmaphysik D85748 Garching, Germany PET15, Sep 2015 these slides: basic processes in the dynamics
More informationTheory for Neoclassical Toroidal Plasma Viscosity in a Toroidally Symmetric Torus. K. C. Shaing
Theory for Neoclassical Toroidal Plasma Viscosity in a Toroidally Symmetric Torus K. C. Shaing Plasma and Space Science Center, and ISAPS, National Cheng Kung University, Tainan, Taiwan 70101, Republic
More informationEntropy evolution and dissipation in collisionless particleincell gyrokinetic simulations
MaxPlanckInsititut für Plasmaphysik Entropy evolution and dissipation in collisionless particleincell gyrokinetic simulations A. Bottino Objectives Develop a numerical tool able to reproduce and predict
More informationDavid R. Smith UWMadison
Supported by College W&M Colorado Sch Mines Columbia U CompX General Atomics INEL Johns Hopkins U LANL LLNL Lodestar MIT Nova Photonics New York U Old Dominion U ORNL PPPL PSI Princeton U Purdue U SNL
More informationReduction of Turbulence via Feedback in a Dipole Confined Plasma. Thomas Max Roberts Applied Physics Applied Mathematics Columbia University
Reduction of Turbulence via Feedback in a Dipole Confined Plasma Thomas Max Roberts Applied Physics Applied Mathematics Columbia University Outline Dipole Confinement Physics The Collisionless Terrella
More informationTransport Improvement Near Low Order Rational q Surfaces in DIII D
Transport Improvement Near Low Order Rational q Surfaces in DIII D M.E. Austin 1 With K.H. Burrell 2, R.E. Waltz 2, K.W. Gentle 1, E.J. Doyle 8, P. Gohil 2, C.M. Greenfield 2, R.J. Groebner 2, W.W. Heidbrink
More informationValidation Study of gyrokinetic simulation (GYRO) near the edge in Alcator CMod ohmic discharges
Validation Study of gyrokinetic simulation (GYRO) near the edge in Alcator CMod ohmic discharges C. Sung, A. E. White, N. T. Howard, D. Mikkelsen, C. Holland, J. Rice, M. Reinke, C. Gao, P. Ennever, M.
More informationFineScale Zonal Flow Suppression of Electron Temperature Gradient Turbulence
FineScale Zonal Flow Suppression of Electron Temperature Gradient Turbulence S.E. Parker, J.J. Kohut, Y. Chen, Z. Lin, F.L. Hinton and W.W. Lee Center for Integrated Plasma Studies, University of Colorado,
More informationUnderstanding and Controlling Turbulent Mixing in a Laboratory Magnetosphere
Understanding and Controlling Turbulent Mixing in a Laboratory Magnetosphere Mike Mauel Department of Applied Physics and Applied Math, Columbia University, New York, NY USA (Acknowledging the work from
More informationHeat Transport in a Stochastic Magnetic Field. John Sarff Physics Dept, UWMadison
Heat Transport in a Stochastic Magnetic Field John Sarff Physics Dept, UWMadison CMPD & CMSO Winter School UCLA Jan 510, 2009 Magnetic perturbations can destroy the nestedsurface topology desired for
More informationNeoclassical transport
Neoclassical transport Dr Ben Dudson Department of Physics, University of York Heslington, York YO10 5DD, UK 28 th January 2013 Dr Ben Dudson Magnetic Confinement Fusion (1 of 19) Last time Toroidal devices
More informationGyrokinetic simulations of magnetic fusion plasmas
Gyrokinetic simulations of magnetic fusion plasmas Tutorial 2 Virginie Grandgirard CEA/DSM/IRFM, Association EuratomCEA, Cadarache, 13108 St PaullezDurance, France. email: virginie.grandgirard@cea.fr
More informationCritical gradient formula for toroidal electron temperature gradient modes
PHYSICS OF PLASMAS VOLUME 8, NUMBER 9 SEPTEMBER 2001 Critical gradient formula for toroidal electron temperature gradient modes F. Jenko, W. Dorland, a) and G. W. Hammett b) MaxPlanckInstitut für Plasmaphysik,
More informationInnovative Concepts Workshop Austin, Texas February 1315, 2006
Don Spong Oak Ridge National Laboratory Acknowledgements: Jeff Harris, Hideo Sugama, Shin Nishimura, Andrew Ware, Steve Hirshman, Wayne Houlberg, Jim Lyon Innovative Concepts Workshop Austin, Texas February
More informationCoupled radiusenergy turbulent transport of alpha particles
Coupled radiusenergy turbulent transport of alpha particles George Wilkie, Matt Landreman, Ian Abel, William Dorland 24 July 2015 Plasma kinetics working group WPI, Vienna Wilkie (Maryland) Coupled transport
More informationGlobal particleincell simulations of Alfvénic modes
Global particleincell simulations of Alfvénic modes A. Mishchenko, R. Hatzky and A. Könies MaxPlanckInstitut für Plasmaphysik, EURATOMAssociation, D749 Greifswald, Germany Rechenzentrum der MaxPlanckGesellschaft
More informationGlobal Nonlinear Simulations of Ion and Electron Turbulence Usintg a ParticleInCell Approach
Global Nonlinear Simulations of Ion and Electron Turbulence Usintg a ParticleInCell Approach S. Jolliet 1), B. F. McMillan 1), T. M. Tran 1), X. Lapillonne 1), L. Villard 1), A. Bottino 2), P. Angelino
More informationProgress and Plans on Physics and Validation
Progress and Plans on Physics and Validation T.S. Hahm Princeton Plasma Physics Laboratory Princeton, New Jersey Momentum Transport Studies: Turbulence and Neoclassical Physics Role of Trapped Electrons
More informationMagnetically Confined Fusion: Transport in the core and in the Scrape off Layer Bogdan Hnat
Magnetically Confined Fusion: Transport in the core and in the Scrape off Layer ogdan Hnat Joe Dewhurst, David Higgins, Steve Gallagher, James Robinson and Paula Copil Fusion Reaction H + 3 H 4 He + n
More informationECH Density Pumpout and Small Scale Turbulence in DIIID
ECH Density Pumpout and Small Scale Turbulence in DIIID By K.L. Wong, T.L. Rhodes, R. Prater, R. Jayakumar, R. Budny, C.C. Petty, R. Nazikian, and W.A. Peebles Background It has been known for more than
More informationIssues of Perpendicular Conductivity and Electric Fields in Fusion Devices
Issues of Perpendicular Conductivity and Electric Fields in Fusion Devices Michael Tendler, Alfven Laboratory, Royal Institute of Technology, Stockholm, Sweden Plasma Turbulence Turbulence can be regarded
More informationRole of Zonal Flows in TEM Turbulence through Nonlinear Gyrokinetic Particle and Continuum Simulation
22 nd IAEA Fusion Energy Conference Geneva, Switzerland, 38 October 2008 IAEACN65/TH/P839 Role of Zonal Flows in TEM Turbulence through Nonlinear Gyrokinetic Particle and Continuum Simulation D. R.
More informationGA A27235 EULERIAN SIMULATIONS OF NEOCLASSICAL FLOWS AND TRANSPORT IN THE TOKAMAK PLASMA EDGE AND OUTER CORE
GA A27235 EULERIAN SIMULATIONS OF NEOCLASSICAL FLOWS AND TRANSPORT IN THE TOKAMAK PLASMA EDGE AND OUTER CORE by E.A. BELLI, J.A. BOEDO, J. CANDY, R.H. COHEN, P. COLELLA, M.A. DORF, M.R. DORR, J.A. HITTINGER,
More informationImpurities in stellarators
Impurities in stellarators Matt Landreman, University of Maryland The problem HDH mode & impurity hole Some recent developments Strawman research program: What can we do? In stellarators, like in tokamaks,
More informationComputational Issues in the Continuum Gyrokinetic Code GYRO
Computational Issues in the Continuum Gyrokinetic Code GYRO presented by: Eric Bass GSEP SciDAC project at General Atomics CScADS Workshop Snowbird, UT July 19, 2010 About GYRO Purpose: To predict transport
More informationOverview of Gyrokinetic Theory & Properties of ITG/TEM Instabilities
Overview of Gyrokinetic Theory & Properties of ITG/TEM Instabilities G. W. Hammett Princeton Plasma Physics Lab (PPPL) http://w3.pppl.gov/~hammett AST559: Plasma & Fluid Turbulence Dec. 5, 2011 (based
More informationZ. Lin University of California, Irvine, CA 92697, USA. Supported by SciDAC GPSTTBP, GSEP & CPES
GTC Framework Development and Application Z. Lin University of California, Irvine, CA 92697, USA and dgpsttbp GPSTTBP Team Supported by SciDAC GPSTTBP, GSEP & CPES GPSTTBP Workshop on GTC Framework
More informationCoarsegraining the electron distribution in turbulence simulations of tokamak plasmas
Coarsegraining the electron distribution in turbulence simulations of tokamak plasmas Yang Chen and Scott E. Parker University of Colorado at Boulder Gregory Rewoldt Princeton Plasma Physics Laboratory
More informationSummer College on Plasma Physics August Introduction to Nonlinear Gyrokinetic Theory
205224 Summer College on Plasma Physics 1028 August 2009 Introduction to Nonlinear Gyrokinetic Theory T.S. Hahm Princeton Plasma Physics Laboratory Princeton University USA Introduction to Nonlinear
More informationGA A26891 A FIRST PRINCIPLES PREDICTIVE MODEL OF THE PEDESTAL HEIGHT AND WIDTH: DEVELOPMENT, TESTING, AND ITER OPTIMIZATION WITH THE EPED MODEL
GA A26891 A FIRST PRINCIPLES PREDICTIVE MODEL OF THE PEDESTAL HEIGHT AND WIDTH: DEVELOPMENT, TESTING, AND ITER OPTIMIZATION WITH THE EPED MODEL by P.B. SNYDER, R.J. GROEBNER, J.W. HUGHES, T.H. OSBORNE,
More informationKinetic damping in gyrokinetic simulation and the role in multiscale turbulence
2013 USJapan JIFT workshop on New Aspects of Plasmas Kinetic Simulation NIFS, November 2223, 2013 Kinetic damping in gyrokinetic simulation and the role in multiscale turbulence cf. Revisit for Landau
More informationGeodesic Acoustic and related modes
Geodesic Acoustic and related modes A. Smolyakov* Acknowledgements X. Garbet, C. Nguyen (CEA Cadarache) V.I. Ilgisonis, V.P. Lakhin, A.Melnikov (Kurchatov Institute) * University of Saskatchewan, Canada
More informationKarla Kauffmann. Including Collisions in Gyrokinetic Tokamak and Stellarator Simulations
Karla Kauffmann Including Collisions in Gyrokinetic Tokamak and Stellarator Simulations IPP 12/10 April, 2012 Including Collisions in Gyrokinetic Tokamak and Stellarator Simulations I n a u g u r a l d
More informationDer Stellarator Ein alternatives Einschlusskonzept für ein Fusionskraftwerk
MaxPlanckInstitut für Plasmaphysik Der Stellarator Ein alternatives Einschlusskonzept für ein Fusionskraftwerk Robert Wolf robert.wolf@ipp.mpg.de www.ipp.mpg.de Contents Magnetic confinement The stellarator
More informationThe gyrokinetic turbulence code GENE  Numerics and applications
Contributors: T. Dannert (1), F. Jenko (1),F. Merz (1), D. Told (1), X. Lapillonne (2), S. Brunner (2), and others T. Görler (1) The gyrokinetic turbulence code GENE  Numerics and applications (1) MaxPlanckInstitut
More informationMHD Pedestal Paradigm (Conventional Wisdom)
Pedestal Transport D. R. Hatch M. Kotschenreuther, X. Liu, S. M. Mahajan, (Institute for Fusion Studies, University of Texas at Austin) S. Saarelma, C. Maggi, C. Giroud, J. Hillesheim (CCFE) J. Hughes
More informationElectromagnetic Turbulence Simulations with Kinetic Electrons from the the Summit Framework
19th IAEA Fusion Energy Conference Tuesday, October 15, 2002 Paper: TH/P113 Electromagnetic Turbulence Simulations with Kinetic Electrons from the the Summit Framework Scott Parker and Yang Chen University
More informationNSTX. Investigation of electron gyroscale fluctuations in the National Spherical Torus Experiment. David Smith. Advisor: Ernesto Mazzucato
NSTX Supported by Investigation of electron gyroscale fluctuations in the National Spherical Torus Experiment David Smith Advisor: Ernesto Mazzucato Final public oral exam February 26, 2009 Investigation
More informationSimulation Study of Interaction between Energetic Ions and Alfvén Eigenmodes in LHD
1 Simulation Study of Interaction between Energetic Ions and Alfvén Eigenmodes in LHD Y. Todo 1), N. Nakajima 1), M. Osakabe 1), S. Yamamoto 2), D. A. Spong 3) 1) National Institute for Fusion Science,
More informationDrift Mode Calculations for the Large Helical Device
PPPL3451 UC7 PPPL3451 Drift Mode Calculations for the Large Helical Device by G. Rewoldt, L.P. Ku, W.M. Tang, H. Sugama, N. Nakajima, K.Y. Watanabe, S. Murakami, H. Yamada, and W.A. Cooper June PPPL
More informationModeling of ELM Dynamics for ITER
Modeling of ELM Dynamics for ITER A.Y. PANKIN 1, G. BATEMAN 1, D.P. BRENNAN 2, A.H. KRITZ 1, S. KRUGER 3, P.B. SNYDER 4 and the NIMROD team 1 Lehigh University, 16 Memorial Drive East, Bethlehem, PA 18015
More informationPhysics and Operations Plan for LDX
Physics and Operations Plan for LDX Columbia University A. Hansen D.T. Garnier, M.E. Mauel, T. Sunn Pedersen, E. Ortiz Columbia University J. Kesner, C.M. Jones, I. Karim, P. Michael, J. Minervini, A.
More informationGyrokinetics an efficient framework for studying turbulence and reconnection in magnetized plasmas
Frank Jenko Gyrokinetics an efficient framework for studying turbulence and reconnection in magnetized plasmas MaxPlanckInstitut für Plasmaphysik, Garching Workshop on VlasovMaxwell Kinetics WPI, Vienna,
More informationEffects of Alpha Particle Transport Driven by Alfvénic Instabilities on Proposed Burning Plasma Scenarios on ITER
Effects of Alpha Particle Transport Driven by Alfvénic Instabilities on Proposed Burning Plasma Scenarios on ITER G. Vlad, S. Briguglio, G. Fogaccia, F. Zonca Associazione EuratomENEA sulla Fusione, C.R.
More informationSensitivity of Tokamak Transport Modeling to Atomic Physics Data: Some Examples
Sensitivity of Tokamak Transport Modeling to Atomic Physics Data: Some Examples, S. Baek, J. D. Elder, M. L. Reinke, F. Scotti, J. L. Terry, S. J. Zweben IAEA Technical Meeting on Uncertainty Assessment
More informationCharacterizing electron temperature gradient turbulence via numerical simulation
Characterizing electron temperature gradient turbulence via numerical simulation W. M. Nevins Lawrence Livermore National Laboratory, Livermore, California 94551 J. Candy General Atomics, San Diego, California
More informationION THERMAL CONDUCTIVITY IN TORSATRONS. R. E. Potok, P. A. Politzer, and L. M. Lidsky. April 1980 PFC/JA8010
ION THERMAL CONDUCTIVITY IN TORSATRONS R. E. Potok, P. A. Politzer, and L. M. Lidsky April 1980 PFC/JA8010 ION THERMAL CONDUCTIVITY IN TORSATRONS R.E. Potok, P.A. Politzer, and L.M. Lidsky Plasma Fusion
More informationUCLA POSTECH UCSD ASIPP U
Supported by College W&M Colorado Sch Mines Columbia U CompX General Atomics INEL Johns Hopkins U LANL LLNL Lodestar MIT Nova Photonics New York U Old Dominion U ORNL PPPL PSI Princeton U Purdue U SNL
More informationTheory and Simulation of Neoclassical Transport Processes, with Local Trapping
Theory and Simulation of Neoclassical Transport Processes, with Local Trapping Daniel H. E. Dubin Department of Physics, University of California at San Diego, La Jolla, CA USA 920930319 Abstract. Neoclassical
More informationMicrotearing modes in the mega ampere spherical tokamak
IOP PUBLISHING Plasma Phys. Control. Fusion 49 (27) 1113 1128 PLASMA PHYSICS AND CONTROLLED FUSION doi:1.188/7413335/49/8/1 Microtearing modes in the mega ampere spherical tokamak D J Applegate 1, C
More informationJP Sta,onary Density Profiles in Alcator C Mod
JP8.00072 Sta,onary Density Profiles in Alcator C Mod 1 In the absence of an internal particle source, plasma turbulence will impose an intrinsic relationship between an inwards pinch and an outwards diffusion
More informationNew bootstrap current formula valid for steep edge pedestal, and its implication to pedestal stability
1 TH/P412 New bootstrap current formula valid for steep edge pedestal, and its implication to pedestal stability C.S. Chang 1,2, Sehoon Koh 2,*, T. Osborne 3, R. Maingi 4, J. Menard 1, S. Ku 1, Scott
More informationtokamak and stellarator geometry, regarding both its physical character and its interaction
THE INFLUENCE OF ZONAL EXB FLOWS ON EDGE TURBULENCE IN TOKAMAKS AND STELLARATORS B. SCOTT, F. JENKO, A. KENDL MaxPlanckInstitut fíur Plasmaphysik, Garching, Germany We report on æuid, gyroæuid and gyrokinetic
More informationOn the physics of shear flows in 3D geometry
On the physics of shear flows in 3D geometry C. Hidalgo and M.A. Pedrosa Laboratorio Nacional de Fusión, EURATOMCIEMAT, Madrid, Spain Recent experiments have shown the importance of multiscale (longrange)
More informationBursty Transport in Tokamaks with Internal Transport Barriers
Bursty Transport in Tokamaks with Internal Transport Barriers S. Benkadda 1), O. Agullo 1), P. Beyer 1), N. Bian 1), P. H. Diamond 3), C. Figarella 1), X. Garbet 2), P. Ghendrih 2), V. Grandgirard 1),
More informationObservation of Reduced Core Electron Temperature Fluctuations and Intermediate Wavenumber Density Fluctuations in H and QHmode Plasmas
Observation of Reduced Core Electron Temperature Fluctuations and Intermediate Wavenumber Density Fluctuations in H and QHmode Plasmas EX/P535 L. Schmitz 1), A.E. White 1), G. Wang 1), J.C. DeBoo 2),
More informationWhat we ve learned so far about the Stability of Plasma Confined by a Laboratory Dipole Magnet
What we ve learned so far about the Stability of Plasma Confined by a Laboratory Dipole Magnet M. E. Mauel and the CTX and LDX Experimental Teams Annual Meeting of the Division of Plasma Physics Philadelphia,
More informationin tokamak plasmas Istvan Pusztai 1 Jeff Candy 2 Punit Gohil 2
Isotope mass and charge effects in tokamak plasmas Istvan Pusztai 1 Jeff Candy 2 Punit Gohil 2 (1) Chalmers University of Technology, Applied Physics, SE412 96, Göteborg, Sweden (2) General Atomics, P.O.
More informationRWM Control Code Maturity
RWM Control Code Maturity Yueqiang Liu EURATOM/CCFE Fusion Association Culham Science Centre Abingdon, Oxon OX14 3DB, UK Work partly funded by UK EPSRC and EURATOM. The views and opinions expressed do
More informationIon orbits and ion confinement studies on ECRH plasmas in TJII stellarator
Ion orbits and ion confinement studies on ECRH plasmas in TJII stellarator F. Castejón 1,4, J. M. Reynolds 3,4, J. M. Fontdecaba 1, D. LópezBruna 1, R. Balbín 1, J. Guasp 1, D. FernándezFraile 2, L.
More informationNonlinear Gyrokinetic Simulations of Ion Turbulence in Impurity Seeded and High Density Toroidal Plasmas
Nonlinear Gyrokinetic Simulations of Ion Turbulence in Impurity Seeded and High Density Toroidal Plasmas R.D. Sydora, J.N. Leboeuf, J. M. Dawson, V.K. Decyk, M.W. Kissick, C. L. Rettig, T. L. Rhodes,
More informationExperiments with a Supported Dipole
Experiments with a Supported Dipole Reporting Measurements of the Interchange Instability Excited by Electron Pressure and Centrifugal Force Introduction Ben Levitt and Dmitry Maslovsky Collisionless Terrella
More informationCritical scales for the destabilization of the toroidal iontemperaturegradient instability in magnetically confined toroidal plasmas
Under consideration for publication in J. Plasma Phys. Critical scales for the destabilization of the toroidal iontemperaturegradient instability in magnetically confined toroidal plasmas Summary of
More informationOverview of Tokamak Rotation and Momentum Transport Phenomenology and Motivations
Overview of Tokamak Rotation and Momentum Transport Phenomenology and Motivations Lecture by: P.H. Diamond Notes by: C.J. Lee March 19, 2014 Abstract Toroidal rotation is a key part of the design of ITER
More informationPresentation by Herb Berk University of Texas at Austin Institute for Fusion Studies in Vienna, Austria Sept. 14, 2015
Review of Theory Papers at 14 th IAEA technical meeting on Engertic Particles in Magnetic Confinement systems Presentation by Herb Berk University of Texas at Austin Institute for Fusion Studies in Vienna,
More informationMultiscale turbulence, electron transport, and Zonal Flows in DIIID
Multiscale turbulence, electron transport, and Zonal Flows in DIIID L. Schmitz1 with C. Holland2, T.L. Rhodes1, G. Wang1, J.C. Hillesheim1, A.E. White3, W. A. Peebles1, J. DeBoo4, G.R. McKee5, J. DeGrassie4,
More informationGyrokinetic simulations with GYSELA: Main current issues in physics & numerics
Gyrokinetic simulations with GYSELA: Main current issues in physics & numerics Y. Sarazin, Y. Asahi 2, N. Bouzat, G. DifPradalier, P. Donnel, C. Ehrlacher, C. Emeriau 3, X. Garbet, Ph. Ghendrih, V. Grandgirard,
More informationTransport at high beta in the NSTX spherical tokamak
Transport at high beta in the NSTX spherical tokamak Walter Guttenfelder 1, R.E. Bell 1, E. Belova 1, J. Candy 2, J.M. Canik 3,N. Crocker 4, E. Fredrickson 1, S.P. Gerhardt 1, N. Gorelenkov 1, S.M. Kaye
More informationDirect drive by cyclotron heating can explain spontaneous rotation in tokamaks
Direct drive by cyclotron heating can explain spontaneous rotation in tokamaks J. W. Van Dam and L.J. Zheng Institute for Fusion Studies University of Texas at Austin 12th USEU Transport Task Force Annual
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 informationNumKin, Strasbourg, October 17 th, 2016
F. Palermo 1 A.Biancalani 1, C.Angioni 1, F.Zonca 2, A.Bottino 1, B.Scott 1, G.D.Conway 1, E.Poli 1 1 Max Planck Institut für Plasmaphysik, Garching, Germany 2 ENEA C. R. Frascati  Via E. Fermi 45, CP
More informationTurbulence and Transport The Secrets of Magnetic Confinement
Turbulence and Transport The Secrets of Magnetic Confinement Presented by Martin Greenwald MIT Plasma Science & Fusion Center IAP January 2005 FUSION REACTIONS POWER THE STARS AND PRODUCE THE ELEMENTS
More informationEffects of drag and diffusion on nonlinear behavior of EPdriven instabilities.
IAEATM EP 2011 / 09 / 07 Effects of drag and diffusion on nonlinear behavior of EPdriven instabilities. Maxime Lesur Y. Idomura, X. Garbet, P. Diamond, Y. Todo, K. Shinohara, F. Zonca, S. Pinches, M.
More information