Results 51 to 60 of about 112,088 (330)

Stable heat and particle flux detachment with efficient particle exhaust in the island divertor of Wendelstein 7-X

Nuclear Fusion, 2020
The island divertor concept is an innovative and promising idea to handle heat and particle exhaust in stellarators. At the Wendelstein 7-X (W7-X) stellarator, this divertor concept plays a central role in the device mission to demonstrate reactor ...
O. Schmitz, Y. Feng, M. Jakubowski, R. König, M. Krychowiak, M. Otte, F. Reimold, T. Barbui, C. Biedermann, S. Bozhenkov, S. Brezinsek, B. Buttenschön, K. Brunner, P. Drewelow, F. Effenberg, E. Flom, H. Frerichs, O. Ford, G. Fuchert, Y. Gao, D. Gradic, O. Grulke, K. Hammond, U. Hergenhahn, U. Höfel, J. Knauer, P. Kornejew, T. Kremeyer, H. Niemann, E. Pasch, A. Pavone, V. Perseo, L. Rudischhauser, G. Schlisio, T. Sunn Pedersen, U. Wenzel, V. Winters, G. Wurden, D. Zhang, the W7-X team   +39 more
semanticscholar   +1 more source

Benchmarking of a 1D Scrape-off layer code SOLF1D with SOLPS and its use in modelling long-legged divertors

, 2013
A 1D code modelling SOL transport parallel to the magnetic field (SOLF1D) is benchmarked with 2D simulations of MAST-U SOL performed via the SOLPS code for two different collisionalities. Based on this comparison, SOLF1D is then used to model the effects
Coster, D, Fishpool, G, Fundamenski, W, Havlickova, E, Subba, F, Wischmeier, M   +5 more
core   +1 more source

Conduction-based model of the Scrape-Off Layer power sharing between inner and outer divertor in diverted low-density tokamak plasmas

Nuclear Materials and Energy, 2019
A simple analytic model for the repartition of the Scrape-Off Layer (SOL) exhaust power between the inner and outer divertors in a diverted low-density tokamak plasma is introduced. Electron heat conduction is assumed to dominate the heat transport, from
R. Maurizio, B.P. Duval, B. Labit, H. Reimerdes, C. Theiler, C.K. Tsui, J. Boedo, H. De Oliveira, O. Février, U. Sheikh, M. Spolaore, K. Verhaegh, N. Vianello, M. Wensing   +13 more
doaj   +1 more source

Separating divertor closure effects on divertor detachment and pedestal shape in DIII-D

, 2020
Comparison between an open divertor and a more-closed divertor in DIII-D demonstrates detachment up to 40% lower pedestal density ( n e , ped) in the closed divertor due to a combination of dec...
A. Moser, L. Casali, B. Covele, A. Leonard, A. Mclean, M. Shafer, H. Wang, J. Watkins   +7 more
semanticscholar   +1 more source

Power Deposition on Tokamak Plasma-Facing Components [PDF]

, 2016
The SMARDDA software library is used to model plasma interaction with complex engineered surfaces. A simple flux-tube model of power deposition necessitates the following of magnetic fieldlines until they meet geometry taken from a CAD (Computer Aided ...
Arter, Wayne, Fishpool, Geoff, Riccardo, Valeria   +2 more
core   +1 more source

Analysis of indefinite divertor footprint with proper orthogonal decomposition in hydrogen/deuterium plasmas in LHD

Nuclear Materials and Energy, 2019
Divertor particle flux signals on divertor plates were analyzed with the multivariable analysis technique, namely, proper orthogonal decomposition (POD), to characterize the indefinite divertor footprint in the Large Helical Device.
H. Tanaka, S. Masuzaki, G. Kawamura, M. Kobayashi, Y. Suzuki, T. Morisaki, N. Ohno   +6 more
doaj   +1 more source

On mechanisms of impurity leakage and retention in the tokamak divertor

Plasma Physics and Controlled Fusion, 2019
Impurity seeding into a tokamak divertor for radiative cooling is considered as a tool for achieving detached/semi-detached regimes required to meet the condition of acceptable heat loads on divertor plates.
I. Senichenkov, E. Kaveeva, E. Sytova, V. Rozhansky, S. Voskoboynikov, I. Veselova, D. Coster, X. Bonnin, F. Reimold   +8 more
semanticscholar   +1 more source

Gyrokinetic projection of the divertor heat-flux width from present tokamaks to ITER [PDF]

, 2017
The XGC1 edge gyrokinetic code is used to study the width of the heat-flux to divertor plates in attached plasma condition. The flux-driven simulation is performed until an approximate power balance is achieved between the heat-flux across the steep ...
C.S. Chang, S. Ku, A. Loarte, V. Parail, F. Köchl, M. Romanelli, R. Maingi, J. Ahn, T. Gray, J. Hughes, B. LaBombard, T. Leonard, M. Makowski, J. Terry   +13 more
semanticscholar   +1 more source

Investigation of conventional and Super-X divertor configurations of MAST Upgrade using SOLPS

, 2014
One of the first studies of MAST Upgrade divertor configurations with SOLPS5.0 are presented. We focus on understanding main prospects associated with the novel geometry of the Super-X divertor (SXD).
Fishpool, G, Fundamenski, W, Havlickova, E, Morris, A W, Wischmeier, M   +4 more
core   +1 more source

Experimental Divertor Similarity Database Parameters [PDF]

, 1995
A set of experimentally-determined dimensionless parameters is proposed for characterizing the regime of divertor operation. The objective is to be able to compare as unambiguously as possible the operation of different divertors and to understand what ...
Hutchinson, I. H., LaBombard, B., Lipschultz, B.   +2 more
core   +4 more sources