A5004869240- Superconducting Materials and Applications
- Magnetic confinement fusion research
- Particle accelerators and beam dynamics
- Magnetic Bearings and Levitation Dynamics
- Electric Motor Design and Analysis
- Particle Accelerators and Free-Electron Lasers
- Nuclear Physics and Applications
- Fusion materials and technologies
- Electromagnetic Launch and Propulsion Technology
- Ionosphere and magnetosphere dynamics
- Electric Power Systems and Control
- Atomic and Molecular Physics
- Magnetic Properties and Applications
- Nuclear reactor physics and engineering
- Structural mechanics and materials
- Atomic and Subatomic Physics Research
- Geomagnetism and Paleomagnetism Studies
- Geotechnical and Geomechanical Engineering
- Gyrotron and Vacuum Electronics Research
- High-pressure geophysics and materials
- Fire effects on concrete materials
- Advanced Power Generation Technologies
- Heat Transfer and Numerical Methods
- Radiation Therapy and Dosimetry
- Magnetic and Electromagnetic Effects
D.V.Efremov Institute of Electrophysical Apparatus (Russia)
2014-2024
Joint Institute for Nuclear Research
2014
ITER
2011
A computation technology has been developed as a tool to provide accurate and detailed magnetostatic simulations for tokamaks. Calculation algorithms are described which allow modelling of complex magnet systems with regard electromagnetic compatibility their components subsystems. The efficiency the proved in computations typical test blanket module International Thermonuclear Experimental Reactor.
Electromagnetic suspension (EMS) system for magnetically levitated vehicles can utilize different types of magnets, such as room temperature electromagnets, superconducting magnets well permanent magnets. In the course study trichotomy has been applied to electromagnetic system. The EMS configuration considered in this paper treated a combination these three modelled individually. Results computations were compared measurements on working prototype that provided stable levitation platform...
The stray magnetic field produced by the ITER tokamak complex, including effect of ferromagnetic materials in building structures, has been studied. results obtained show that fields can be significantly modified structures areas distant from tokamak. It is shown complex exceed 100 Gs where service staff are possibly located. Such a level should agreement with medical and safety engineering limits as well to ensure normal operations equipment sensitive fields. presented form set maps, which...
The problem of complex thermohydraulic simulation the magnet system International Thermonuclear Experimental Reactor using VINCENTA modelling is discussed. results validation are presented on basis an experiment with central solenoid model coil.
A unified method is proposed for numerical simulation of magnet systems complex configurations, which contain permanent magnets and electric currents. The based on the use a reduced scalar magnetic potential (the "T-Omega" method). Numerical simulations with computer code KOMPOT allow magnetostatic analysis precision taking into account non-linear properties materials. comparison calculated measured data presented test sample.
Abstract The error fields produced by localized steel objects in the ITER tokamak building have been studied this paper. critical mass of objects, producing plasma region ‘3-mode’ field 0.1 Unit (10−6 toroidal magnetic field), is estimated for a set object positions. It shown that scaled with distance as R 7, if R≥30 m. Keywords: tokamaklocalized elementmagnetic surfaceerror
The paper briefly describes the main results of numerical simulation and analysis transient electromagnetic processes for plasma discharge scenario 3106 in GLOBUS-M tokamak (at Ioffe Physical–Technical Institute, Russia). A developed two-dimensional model uses a parametric representation boundary assuming parabolic distribution current density over cross-section.
Abstract The stray magnetic fields produced at plasma initiation (in particular the gas breakdown (BD)) by ITER tokamak complex building have been studied. influence of global elements is estimated. scenario was designed and simulated using virtual coils with currents producing a field in BD region similar to that from building. Keywords: ITERtokamakmagnetic fieldferromagnetic materialstray
Abstract Perturbations of the axial symmetry a toroidal magnetic field, or field (TF) ripple, in tokamaks can potentially lead to losses high-energy particles from plasma. These be significant and are one major concerns with respect both energy blance deuterium–tritium plasma heat load limits International Thermonuclear Experimental Reactor (ITER). In ITER design, ferromagnetic inserts used reduce TF ripple. this work impact on ripple is analysed optimize their filling factor within design...
Abstract Error fields produced by the ferromagnetic rebar of building ITER tokamak complex have been studied. It is shown that ‘3-mode’ error field global asymmetry about 2×10−6 toroidal magnetic field. Analysis caused local elements was performed for one nearest to structure, bioshield. bioshield produces an less than 10−5 Such are acceptable. Keywords: tokamaktokamak complexmagnetic surfaceerror
A feasibility has been demonstrated for numerical reconstruction of geometrical displacement or deformations the winding occurred in manufacture and assembly magnet coils using magnetic measurements, that is one principal issues quality control magnet. For validations proposed approach, test results possible misalignments deviations ITER coil are presented.
бесконечно тонких токовых витков.Другие модели учитывают реальные размеры поперечного сечения катушек
A computational technique is proposed for the analysis and design optimization of inductive-type superconducting fault current limiters (SFCL) with variable impedance power systems application. The applicable a wide range magnet systems. paper focused on electromagnetic transients. methodological example model SFCL presented. Numerical experiments are described to study nonlinear effects at saturated unsaturated states. Results demonstrate that magnetic behavior components affects noticeably...
This paper presents the key results of a transient electromagnetic (EM) analysis International Thermonuclear Experimental Reactor (ITER) divertor cassette. The was done for ITER 2002 year reference design with aid TYPHOON code. Two plasma disruption scenarios, fast and slow downward VDE, were analysed. To optimise use computational resources, two independent EM processes analysed separately each scenario superimposed afterwards. first process is associated halo currents variation toroidal...