000233823 001__ 233823
000233823 005__ 20190415234642.0
000233823 037__ $$aPOST_TALK
000233823 245__ $$aImplementation of Diverted Equilibria in the GBS simulation code
000233823 260__ $$c2017
000233823 269__ $$a2017
000233823 336__ $$aPosters
000233823 513__ $$aPosters
000233823 520__ $$aSimulating the most external plasma region of a tokamak, the scrape-off layer (SOL), is of crucial importance on the path towards a fusion reactor as heat load on the vessel wall, impurity generation, and overall plasma confinement all depend on the plasma dynamics in this region. The GBS code has been developed to solve the drift-reduced Braginskii equations which describe turbulent behaviour of the plasma in the SOL. Until recently, only limited scenarios were considered in GBS and it was not possible to investigate diverted ones. This was mainly due to the use of field aligned coordinates, which present a singularity at the X-point, where the gradient of the magnetic poloidal flux vanishes. In the current work we will present the extension of the GBS code to the diverted case, performed thanks to the use of toroidal coordinates. Three main topics will be discussed: the analytical and numerical work behind the implementation of X-point configurations, the results of the code verification and convergence tests, and some first understanding of the plasma turbulence in the presence of a single-null configuration.
000233823 6531_ $$aCRPP_EDGE
000233823 700__ $$aParuta, Paola
000233823 700__ $$g263615$$aBeadle, Carrie$$0(EPFLAUTH)263615
000233823 700__ $$aFrei, Baptiste
000233823 700__ $$aRiva, Fabio
000233823 700__ $$aWersal, Christoph
000233823 7112_ $$dSeptember 27-29, 2017$$cMarseille, France$$apet16: 16th International Workshop in Plasma Edge Theory in Fusion Devices
000233823 7112_ $$d27-29 September 2017$$cMarseille, France$$a16th Plasma Edge Theory workshop
000233823 720_2 $$g176621$$edir.$$aRicci, Paolo$$0240122
000233823 8560_ $$fpaolo.ricci@epfl.ch
000233823 909C0 $$xU12268$$xU12272$$0252028$$pSPC$$xU10136$$xU12267$$xU12269$$xU12271$$xU10559$$xU12273$$xU10557$$xU12270$$xU10137$$xU10636$$xU12266$$xU10635$$xU10558
000233823 909CO $$pSB$$ppresentation$$pposter$$ooai:infoscience.tind.io:233823
000233823 917Z8 $$x251873
000233823 917Z8 $$x251873
000233823 937__ $$aEPFL-POSTER-233823
000233823 973__ $$aEPFL$$sPUBLISHED
000233823 980__ $$aPOST_TALK