Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Simakov, Andrei"'
Autor:
Anderson, Steven E., Chacón, Luis, Simakov, Andrei N., Haines, Brian M., Montgomery, David S.
We report on simulations of counter-propagating laser-produced plasmas in an inertial confinement fusion (ICF) hohlraum surrogate, aiming to replicate observations reported by Le Pape et. al in recent work. The conditions of the colliding plasmas are
Externí odkaz:
http://arxiv.org/abs/2403.04967
We report on the first steady-state simulations of strong plasma shocks with fully kinetic ions and electrons, independently confirmed by two fully kinetic codes (an Eulerian continuum and a Lagrangian particle-in-cell). While kinetic electrons do no
Externí odkaz:
http://arxiv.org/abs/2106.13108
Autor:
Taitano, William T., Keenan, Brett D., Chacon, Luis, Anderson, Steven E., Hammer, Hans R., Simakov, Andrei N.
We present a numerical algorithm that enables a phase-space adaptive Eulerian Vlasov-Fokker-Planck (VFP) simulation of an inertial confinement fusion (ICF) capsule implosion. The approach relies on extending a recent mass, momentum, and energy conser
Externí odkaz:
http://arxiv.org/abs/2009.07979
Publikováno v:
Journal of Computational Physics 419C (2020) 109686
We consider the solution of the fully kinetic (including electrons) Vlasov-Amp\`ere system in a one-dimensional physical space and two-dimensional velocity space (1D-2V) for an arbitrary number of species with a time-implicit Eulerian algorithm. The
Externí odkaz:
http://arxiv.org/abs/1910.02099
We develop a conservative phase-space grid-adaptivity strategy for the Vlasov-Fokker-Planck equation in a planar geometry. The velocity-space grid is normalized to the thermal speed and shifted by the bulk-fluid velocity. The configuration-space grid
Externí odkaz:
http://arxiv.org/abs/1903.05467
Strong collisional shocks in multi-ion plasmas are featured in many environments, with Inertial Confinement Fusion (ICF) experiments being one prominent example. Recent work [Keenan ${\it et \ al.}$, PRE ${\bf 96}$, 053203 (2017)] answered in detail
Externí odkaz:
http://arxiv.org/abs/1712.08663
We consider a 1D-2V Vlasov-Fokker-Planck multi-species ionic description coupled to fluid electrons. We address temporal stiffness with implicit time stepping, suitably preconditioned. To address temperature disparity in time and space, we extend the
Externí odkaz:
http://arxiv.org/abs/1709.04502
Publikováno v:
Phys. Rev. E 96, 053203 (2017)
Strong collisional shocks in multi-ion plasmas are featured in many high-energy-density environments, including Inertial Confinement Fusion (ICF) implosions. However, their basic structure and its dependence on key parameters (e.g., the Mach number a
Externí odkaz:
http://arxiv.org/abs/1707.02927
Autor:
Stanier, A., Daughton, W., Simakov, Andrei N., Chacon, L., Le, A., Karimabadi, H., Ng, Jonathan, Bhattacharjee, A.
A number of studies have considered how the rate of magnetic reconnection scales in large and weakly collisional systems by the modelling of long reconnecting current sheets. However, this set-up neglects both the formation of the current sheet and t
Externí odkaz:
http://arxiv.org/abs/1611.05933
The fast rates of magnetic reconnection found in both nature and experiments are important to understand theoretically. Recently, it was demonstrated that two-fluid magnetic reconnection remains fast in the strong guide field regime, regardless of th
Externí odkaz:
http://arxiv.org/abs/1505.03794