[PDF] Top 20 VMS Finite Element for MHD and Reduced-MHD in Tokamak Plasmas

... a VMS stabilization strategy specific for time evolving problems and based on time ...3] and can be simplified to recover the parabolizations that are often used for MHD ... Voir le document complet

... found in [19], chapter 2, Theorems ...system in the sense of Friedrichs. The uniqueness and existence of solution on a finite time T > 0 can then be estab- lished by classical iteration ... Voir le document complet

... coefficient and radial pinch velocity, S z is the impurity density source, and R k,zi is the parallel friction force represented in ...a finite difference method in the radial ... Voir le document complet

... Nonlinear MHD simulations of the DIII-D shot #145117 have been performed with the JOREK code assuming ideal wall boundary conditions as detailed ...fields and rotations, which are applied in the ... Voir le document complet

... workflow In the frame of spacecraft and space instrument design, the thermal analysis workflow, ...development and use of the model, typically consists of the key steps [31, 33, 58] represented ... Voir le document complet

... out for the baseline ITER parameters: major radius ...), and effective charge ...included. For simplicity, it is assumed that the mixing radius of each sawtooth oscillation extends from the plasma ... Voir le document complet

... code for solving the MHD equations as accurately as possible would have many astrophysical applications because magnetic fields are ubiquitous in the ...Universe. For example, the ... Voir le document complet

... 0 for m=2, n=1. Since there are large uncertainties in the equilibrium, because there are no internal magnetic field measurements, the 2/1 mode may be marginally stable or unstable within the error ... Voir le document complet

... flows. In this respect, it is interesting to develop statistical mechanics of systems closer to natural situations, albeit sufficiently simple so that the already well tested recipes of statistical mechanics ... Voir le document complet

... As thermocouple data showed later, however, it is likely that al- though the current pulse was 10 ms in duration, the actual pulse of heat energy at the sheath surface[r] ... Voir le document complet

... It should be noted that the field concentration factor is substantially higher in this retrofit MHD magnet design than in earlier MHD magnet designs because the re[r] ... Voir le document complet

... density, and high temperature by short energetic laser or ion beam ...consists in the irradiation of deuterium-tritium spherical shell by the use of powerful laser beam neatly set to obtain a symmetric ... Voir le document complet

... shown in Figure ...However, in the midst of each ELM, the coherency of magnetic signals disappears, which implies that ELMs prob- ably become ...linearly and ii) what physical information can be ... Voir le document complet

... La MHD est utilisée de manière théorique dans le con…nement des plasmas (stabilisation, expulsion ou compression), elles gouvernent par exemple les mouvements de l’air de l’atmo- sphère, les courants ... Voir le document complet

... drivers. For instance, with the same hardware (an Intel Xeon two-CPU system) the program runs almost three times faster with the OpenCL Intel drivers than with the open source POCL ...optimized for ... Voir le document complet

... CEA for letting me broaden my horizons through various missions ...Kiptily and Rudi ...Imr´ısek and Nikita Varavin at IPP Prague for your warm welcome to the COMPASS experimental campaign on ... Voir le document complet

... The heavy-walled liquid helium vessel for a large "pool- cooled" superconducting magnet represents a large cost, a large reliability risk and a large safety haz[r] ... Voir le document complet

... dispersion and damping rates, computed in the regime of adi- abatic ions and isothermal electrons often considered in the literature, also agrees with the results of the kinetic theory ... Voir le document complet

... To carry the magnet design (operating) current continuously at the design magnetic field and temperature at which the conductor operates, with negligible power loss[r] ... Voir le document complet

... tion and internal pressure dynamics of this conductor will be tested in both short sample and small coil configurations in the background field of the high field [r] ... Voir le document complet