Results 41 to 50 of about 8,080 (204)

Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations

Contributions to Plasma Physics, EarlyView.
ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin, Philipp Ulbl, Wladimir Zholobenko, Frank Jenko   +3 more
wiley   +1 more source

In search of X-point radiator regime features in NSTX and DIII-D discharges with the snowflake divertor

Nuclear Materials and Energy
Experimental data from NSTX and DIII-D discharges with the snowflake (SF) divertor configurations are analyzed toward the development of the X-point radiator (XPR) concept. The XPR divertor regime was recently realized in standard divertor configurations
V.A. Soukhanovskii, S.L. Allen, M.E. Fenstermacher, C.J. Lasnier, A.G. McLean, F. Scotti, E. Kolemen, A. Diallo, S. Gerhardt, S. Kaye, B.P. LeBlanc, R. Maingi, J.E. Menard, R. Raman, A.W. Hyatt, A.W. Leonard, T.H. Osborne   +16 more
doaj   +1 more source

MHD simulation on magnetic compression of field reversed configurations with NIMROD

Nuclear Fusion, 2023
Magnetic compression has long been proposed a promising method for plasma heating in a field reversed configuration (FRC). However, it remains a challenge to fully understand the physical mechanisms underlying the compression process, due to its highly ...
Y. Ma, P. Zhu, B. Rao, H. Li
doaj   +1 more source

Structure of magnetic fields in non-convective stars

, 2009
(Abridged) We develop a theoretical framework to construct axisymmetric magnetic equilibria in stars, consisting of both poloidal and toroidal magnetic field components.
Braithwaite, Braithwaite, Broderick, Chandrasekhar, Ferraro, Flowers, Lamb, Markey, Maxim Lyutikov, Moffatt, Monaghan, Prendergast, Shafranov, Tayler, Villata, Woltjer, Wright   +16 more
core   +1 more source

Separatrix configurations in holomorphic flows

29 pages, 7 figures, to be published in "Qualitative Theory of Dynamical Systems"
Kainz, Nicolas, Lebiedz, Dirk
openaire   +2 more sources

Edge Fluid Turbulence Simulations of Stellarators With GRILLIX

Contributions to Plasma Physics, EarlyView.
ABSTRACT The edge fluid turbulence code GRILLIX has recently been extended from axisymmetric tokamak geometries to support 3D stellarator configurations. Following successful proof‐of‐principle simulations published in Stegmeir et al., we present here a comprehensive simulation of the Wendelstein 7‐AS stellarator.
Andreas Stegmeir, Christoph Pitzal, Barnabas Csillag, Miguel Madeira, Marion Finkbeiner   +4 more
wiley   +1 more source

Hybrid simulation study on ion heating by low-frequency wave excited in a field-reversed configuration

Nuclear Fusion
In this paper, we use hybrid simulation to elucidate the plasma heating mechanism due to waves excited in Field-Reversed Configuration (FRC) plasma. The plasma parameters are a separatrix radius of 0.16 m and a separatrix length of 1.16 m ( x -point ...
Takahiro Urano, Toshiki Takahashi, Naoki Mizuguchi, Tomohiko Asai, Shigefumi Okada   +4 more
doaj   +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

CFD Analysis of Dual‐Layer PCM Roofs for Thermal Mitigation in Residential Buildings

Heat Transfer, EarlyView.
ABSTRACT This study presents a computational fluid dynamics analysis of dual‐layer phase change material (PCM) roofs for passive cooling in residential buildings under the hot and humid climate of Bangladesh. A three‐dimensional transient model was developed in ANSYS Fluent using the enthalpy–porosity approach to simulate coupled heat conduction ...
Mohammad Junaid, Sakhawat Hossan Robel, Mahmud Or‐Rashid, Pabel Shahrear, Md Shajedul Karim, Suvash C. Saha, Goutam Saha   +6 more
wiley   +1 more source

MHD flows at astropauses and in astrotails [PDF]

, 2014
The geometrical shapes and the physical properties of stellar wind -- interstellar medium interaction regions form an important stage for studying stellar winds and their embedded magnetic fields as well as cosmic ray modulation. Our goal is to provide a
Karlicky, Marian, Kraus, Michaela, Nickeler, Dieter H., Wiegelmann, Thomas   +3 more
core   +2 more sources