Zobrazeno 1 - 10
of 238
pro vyhledávání: '"D.P. Stotler"'
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 113-119 (2019)
A synthetic gas puff imaging (GPI) diagnostic is applied to a gyrokinetic turbulence simulation of Alcator C-Mod with the objective of assessing the impact of turbulent plasma fluctuations on the GPI neutral density field. We find that these effects
Externí odkaz:
https://doaj.org/article/0e27e2776f2e44f9aa6a55c334aedc28
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 233-238 (2019)
Results are presented for one- and two-dimensional (2D) edge plasma transport simulations for strong injection of lithium (Li) in the divertor region of a tokamak. The model includes the scrape-off layer and divertor regions, and, for 2D, a small reg
Externí odkaz:
https://doaj.org/article/9940d1b97dfa429ab87e976ee308c945
Autor:
R.M. Churchill, J.M. Canik, C.S. Chang, R. Hager, A.W. Leonard, R. Maingi, R. Nazikian, D.P. Stotler
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 978-983 (2017)
Simulations using the fully kinetic code XGCa were undertaken to explore the impact of kinetic effects on scrape-off layer (SOL) physics in DIII-D H-mode plasmas. XGCa is a total-f, gyrokinetic code which self-consistently calculates the axisymmetric
Externí odkaz:
https://doaj.org/article/1c24a4d1781e41f89307b81c133166b2
Autor:
I. Joseph, M.E. Rensink, D.P. Stotler, A.M. Dimits, L.L. LoDestro, G.D. Porter, T.D. Rognlien, B. Sjogreen, M.V. Umansky
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 813-818 (2017)
The coupled fluid plasma and kinetic neutral physics equations are analyzed through theory and simulation of benchmark cases. It is shown that coupling methods that do not treat the coupling rates implicitly are restricted to short time steps for sta
Externí odkaz:
https://doaj.org/article/8caab6611ca94786ad72fad0f0801922
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 1130-1135 (2017)
Modifications of the drift-kinetic transport code XGC0 to include the transport, ionization, and recombination of individual charge states, as well as the associated radiation, are described. The code is first applied to a simulation of an NSTX H-mod
Externí odkaz:
https://doaj.org/article/0f904ac9eccb460bb670836d04d57f9c
Autor:
Choong-Seock Chang, Randy Michael Churchill, D.P. Stotler, Seung-Hoe Ku, Stewart Zweben, J.L. Terry
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss, Pp 113-119 (2019)
A synthetic gas puff imaging (GPI) diagnostic is applied to a gyrokinetic turbulence simulation of Alcator C-Mod with the objective of assessing the impact of turbulent plasma fluctuations on the GPI neutral density field. We find that these effects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e56bb7bd06335a7401acbcd201efe008
http://www.sciencedirect.com/science/article/pii/S2352179118300978
http://www.sciencedirect.com/science/article/pii/S2352179118300978
Publikováno v:
Fusion Engineering and Design. 135:380-393
Simulations of the heat flux on plasma facing components from exhausting core plasma are reported for two possible Fusion Nuclear Science Facility (FNSF) divertor configurations. One configuration utilizes divertor plates strongly inclined with respe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::199a821ed6a36edb7e8fe00a653d06e3
https://doi.org/10.1016/j.fusengdes.2017.07.024
https://doi.org/10.1016/j.fusengdes.2017.07.024
Autor:
Robert Hager, R. Maingi, D.P. Stotler, Raffi Nazikian, John Canik, Anthony Leonard, Choong-Seock Chang, Randy Michael Churchill
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss, Pp 978-983 (2017)
Simulations using the fully kinetic code XGCa were undertaken to explore the impact of kinetic effects on scrape-off layer (SOL) physics in DIII-D H-mode plasmas. XGCa is a total-f, gyrokinetic code which self-consistently calculates the axisymmetric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4605f0e7dc5be37f9c533e74cf26f9f8
https://doi.org/10.1016/j.nme.2016.12.013
https://doi.org/10.1016/j.nme.2016.12.013
Autor:
V.A. Soukhanovskii, R.E. Bell, Maxim Umansky, Stewart Zweben, S.A. Sabbagh, B.P. LeBlanc, D.P. Stotler, Filippo Scotti
Publikováno v:
Nuclear Fusion. 61:036002
Neutral density profiles are measured on the outboard midplane of the National Spherical Torus Experiment Upgrade (NSTX-U) using a two dimensional camera (ENDD, edge neutral density diagnostic) filtered for deuterium Balmer α (D α ) emission interp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf99f5e8c12210afb385a78bbc8fcdbb
https://doi.org/10.1088/1741-4326/abcdb5
https://doi.org/10.1088/1741-4326/abcdb5
Autor:
J.L. Terry, Choong-Seock Chang, Randy Michael Churchill, Seung-Hoe Ku, D.P. Stotler, Stewart Zweben
Publikováno v:
Physics of Plasmas. 27:062512
A synthetic gas puff imaging (GPI) diagnostic has been developed for the purpose of validating the three-dimensional gyrokinetic turbulence code XGC. The synthetic diagnostic is described and applied to XGC simulations of two Alcator C-Mod discharges
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce26145edc082c486352eec1ed2e1d8f
https://doi.org/10.1063/5.0002876
https://doi.org/10.1063/5.0002876