Zobrazeno 1 - 10
of 287
pro vyhledávání: '"Umansky, M"'
A fusion boundary-plasma domain is defined by axisymmetric magnetic surfaces where the geometry is often complicated by the presence of one or more X-points; and modeling boundary plasmas usually relies on computational grids that account for the mag
Externí odkaz:
http://arxiv.org/abs/2102.07040
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Dudson, B. D., Allen, A., Breyiannis, G., Brugger, E., Buchanan, J., Easy, L., Farley, S., Joseph, I., Kim, M., McGann, A. D., Omotani, J. T., Umansky, M. V., Walkden, N. R., Xia, T., Xu, X. Q.
BOUT++ is a 3D nonlinear finite-difference plasma simulation code, capable of solving quite general systems of PDEs, but targeted particularly on studies of the edge region of tokamak plasmas. BOUT++ is publicly available, and has been adopted by a g
Externí odkaz:
http://arxiv.org/abs/1405.7905
Non-local closures allow kinetic effects on parallel transport to be included in fluid simulations. This is especially important in the scrape-off layer, but to be useful there the non-local model requires consistent kinetic boundary conditions at th
Externí odkaz:
http://arxiv.org/abs/1405.6236
Publikováno v:
Phys. Plasmas 20, 055704 (2013)
Several simulations of turbulence in the Large Plasma Device (LAPD) [W. Gekelman et al., Rev. Sci. Inst. 62, 2875 (1991)] are energetically analyzed and compared with each other and with the experiment. The simulations use the same model, but differe
Externí odkaz:
http://arxiv.org/abs/1301.0536
Publikováno v:
B. Friedman, T. A. Carter, M. V. Umansky, D. Schaffner, and B. Dudson, Phys. Plasmas 19, 102307 (2012)
Energy dynamics calculations in a 3D fluid simulation of drift wave turbulence in the linear Large Plasma Device (LAPD) [W. Gekelman et al., Rev. Sci. Inst. 62, 2875 (1991)] illuminate processes that drive and dissipate the turbulence. These calculat
Externí odkaz:
http://arxiv.org/abs/1205.2337
The BOUT++ code is used to simulate ELMs in a shifted circle equilibrium. Reduced ideal MHD simulations are first benchmarked against the linear ideal MHD code ELITE, showing good agreement. Diamagnetic drift effects are included finding the expected
Externí odkaz:
http://arxiv.org/abs/1008.4554
Publikováno v:
Phys. Plasmas, 17, 122312 (2010)
Numerical simulation of plasma turbulence in the Large Plasma Device (LAPD) [Gekelman et al, Rev. Sci. Inst., 62, 2875, 1991] is presented. The model, implemented in the BOUndary Turbulence (BOUT) code [M. Umansky et al, Contrib. Plasma Phys. 180, 88
Externí odkaz:
http://arxiv.org/abs/1005.2418
Publikováno v:
P. Popovich, M. V. Umansky, T. A. Carter, B. Friedman, Phys. Plasmas 17, 102107 (2010)
The properties of linear instabilities in the Large Plasma Device [W. Gekelman et al., Rev. Sci. Inst., 62, 2875 (1991)] are studied both through analytic calculations and solving numerically a system of linearized collisional plasma fluid equations
Externí odkaz:
http://arxiv.org/abs/1004.4674