Journal ArticleDOI
Numerical Transport Codes
J. Ongena,M. Evrard,D.C. McCune +2 more
Reads0
Chats0
TLDR
The relevant equations that are used in these codes are established, and on the basis of these equations, the necessary calculations needed to resolve them are pointed out.Abstract:
This paper gives a brief introduction on numerical transport codes. The relevant equations which are used in these codes are established, and on the basis of these equations, the necessary calculations needed to resolve them are pointed out. Finally, some examples are given, illustrating their application.read more
Citations
More filters
Journal ArticleDOI
Fusion nuclear science facilities and pilot plants based on the spherical tokamak
Jonathan Menard,Thomas Brown,Laila El-Guebaly,M. D. Boyer,John Canik,B. Colling,R. Raman,Zhirui Wang,Yuhu Zhai,P.F. Buxton,Brent Covele,C. D’Angelo,Andrew M. Davis,S.P. Gerhardt,Mikhail Gryaznevich,M. Harb,T. C. Hender,S.M. Kaye,D. Kingham,Mike Kotschenreuther,Swadesh M Mahajan,R. Maingi,E. Marriott,E.T. Meier,E.T. Meier,L. Mynsberge,C. Neumeyer,M. Ono,Jong-Kyu Park,S.A. Sabbagh,Vlad Soukhanovskii,Prashant M Valanju,R. Woolley +32 more
TL;DR: Menard et al. as mentioned in this paper developed a blanket system capable of tritium breeding ratio TBR ≈ 1, a poloidal field coil set supporting high elongation and triangularity for a range of internal inductance and normalized beta values consistent with NSTX/NSTX-U previous/planned operation, and a long-legged divertor analogous to the MAST-U divertor which substantially reduces projected peak divertor heat-flux and has all outboard field coils outside the vacuum chamber and superconducting to reduce power consumption.
Journal ArticleDOI
Transport and confinement in the Mega Ampère Spherical Tokamak (MAST) plasma
R.J. Akers,J.-W. Ahn,G. Antar,L.C. Appel,D Applegate,C. Brickley,C. A. Bunting,P. G. Carolan,C. D. Challis,N. J. Conway,G. F. Counsell,R. O. Dendy,B. D. Dudson,A. R. Field,A. Kirk,B. Lloyd,H. F. Meyer,A. W. Morris,A. Patel,C. M. Roach,V Rohzansky,A. Sykes,D Taylor,M. R. Tournianski,M. Valovic,H. R. Wilson,K.B. Axon,R.J. Buttery,D. Ciric,G. Cunningham,J. Dowling,M. R. Dunstan,S. Gee,Mikhail Gryaznevich,Per Helander,D. L. Keeling,P.J. Knight,F Lott,Michael Loughlin,S.J. Manhood,Romualdo Martín,G. McArdle,M. Price,K. Stammers,J. Storrs,M. J. Walsh,Nbi Team +46 more
TL;DR: In this article, a combination of state-of-the-art imaging and profile diagnostics, together with established plasma simulation codes, are providing for the first time on Mega Ampere Spherical Tokamak (MAST) the tools required for studying confinement and transport, from the core through to the plasma edge and scrape-off-layer (SOL).
Journal ArticleDOI
Modelling neutral beams in fusion devices: Beamlet-based model for fast particle simulations
Otto Asunta,Joonas Govenius,Robert Budny,M. Gorelenkova,G. Tardini,Taina Kurki-Suonio,Anna Salmi,Seppo Sipilä +7 more
TL;DR: A new beamlet-based neutral beam ionization model called BBNBI, which takes into account the fine structure of the injector, follows the injected neutrals until ionization, and generates a source ensemble of ionized NBI test particles for slowing down calculations, is introduced.
Journal ArticleDOI
Orchestrating TRANSP Simulations for Interpretative and Predictive Tokamak Modeling with OMFIT
Brian Grierson,X. Yuan,M. Gorelenkova,S.M. Kaye,Nikolas Logan,Orso Meneghini,Shaun Haskey,James Buchanan,Michael Fitzgerald,Sterling Smith,L. Cui,R.V. Budny,Francesca Poli +12 more
TL;DR: By using OMFIT to orchestrate the steps for experimental data preparation, selection of operating mode, submission, postprocessing, and visualization, the usage of TRANSP is streamlined and standardized.
Journal ArticleDOI
Confinement studies of auxiliary heated NSTX plasmas
B.P. LeBlanc,R. E. Bell,Stanley Kaye,Dan Stutman,M.G. Bell,Manfred Bitter,Clarisse Bourdelle,David Gates,Rajesh Maingi,S. S. Medley,Jonathan Menard,D. Mueller,S.F. Paul,A. L. Roquemore,A. Rosenberg,S.A. Sabbagh,Vlad Soukhanovskii,E. J. Synakowski,James R. Wilson +18 more
TL;DR: In this article, the confinement time in NBI heated plasmas with either L- or H-modes edge is up to 2.5 times the values predicted by the ITER97L scaling.
References
More filters
Journal ArticleDOI
Reconstruction of current profile parameters and plasma shapes in tokamaks
TL;DR: In this paper, an efficient method is given to reconstruct the current profile parameters, the plasma shape, and a current profile consistent with the magnetohydrodynamic equilibrium constraint from external magnetic measurements, based on a Picard iteration approach.
Journal ArticleDOI
Theory of plasma transport in toroidal confinement systems
F. L. Hinton,Richard D Hazeltine +1 more
TL;DR: A review of magnetized-plasma transport theory can be found in this paper, with a focus on the application to axisymmetric tokamak-type confinement systems.
Journal ArticleDOI
Equilibrium analysis of current profiles in tokamaks
TL;DR: In this paper, an efficient method is given for self-consistent reconstruction of the tokamak current profiles and their associated magnetic topology using the magnetohydrodynamic (MHD) equilibrium constraint from external magnetic measurements, kinetic profile measurements, internal poloidal magnetic field measurements, and topological information from soft X-ray (SXR) measurements.
Journal ArticleDOI
Bootstrap current and neoclassical transport in tokamaks of arbitrary collisionality and aspect ratio
TL;DR: In this article, a multi-species fluid model is described for the steady state parallel and radial force balance equations in axisymmetric tokamak plasmas, and the bootstrap current, electrical resistivity and particle and heat fluxes are evaluated in terms of the rotation velocities and friction and viscosity coefficients.
Journal ArticleDOI
New techniques for calculating heat and particle source rates due to neutral beam injection in axisymmetric tokamaks
TL;DR: In this paper, a set of numerical techniques for calculating heat and particle source rates due to neutral beam injection in axisymmetric tokamaks is described, taking into account a number of significant, and normally neglected, effects.