Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Kormann, Katharina"'
Semi-Lagrangian solvers for the Vlasov system offer noiseless solutions compared to Lagrangian particle methods and can handle larger time steps compared to Eulerian methods. In order to reduce the computational complexity of the interpolation steps,
Externí odkaz:
http://arxiv.org/abs/2406.09941
With the increase in computational capabilities over the last years it becomes possible to simulate more and more complex and accurate physical models. Gyrokinetic theory has been introduced in the 1960s and 1970s in the need of describing a plasma w
Externí odkaz:
http://arxiv.org/abs/2402.06605
In this paper, we describe our approach to develop a simulation software application for the fully kinetic Vlasov equation which will be used to explore physics beyond the gyrokinetic model. Simulating the fully kinetic Vlasov equation requires effic
Externí odkaz:
http://arxiv.org/abs/2303.05994
The exact numerical simulation of plasma turbulence is one of the assets and challenges in fusion research. For grid-based solvers, sufficiently fine resolutions are often unattainable due to the curse of dimensionality. The sparse grid combination t
Externí odkaz:
http://arxiv.org/abs/2209.14064
Continuum Vlasov simulations can be utilized for highly accurate modelling of fully kinetic plasmas. Great progress has been made recently regarding the applicability of the method in realistic plasma configurations. However, a reduction of the high
Externí odkaz:
http://arxiv.org/abs/2201.03471
Structure-preserving methods can be derived for the Vlasov-Maxwell system from a discretisation of the Poisson bracket with compatible finite-elements for the fields and a particle representation of the distribution function. These geometric electrom
Externí odkaz:
http://arxiv.org/abs/2111.08342
In this article we describe a unifying framework for variational electromagnetic particle schemes of spectral type, and we propose a novel spectral Particle-In-Cell (PIC) scheme that preserves a discrete Hamiltonian structure. Our work is based on a
Externí odkaz:
http://arxiv.org/abs/2102.02106
In this article we apply a discrete action principle for the Vlasov--Maxwell equations in a structure-preserving particle-field discretization framework. In this framework the finite-dimensional electromagnetic potentials and fields are represented i
Externí odkaz:
http://arxiv.org/abs/2101.09247
Publikováno v:
In Computer Physics Communications February 2024 295
Publikováno v:
Physics of Plasmas 27, 092506 (2020)
This paper investigates subcycling of particle orbits in variational, geometric particle-in-cell methods addressing the Vlasov--Maxwell system in magnetized plasmas. The purpose of subcycling is to allow different time steps for different particle sp
Externí odkaz:
http://arxiv.org/abs/2002.10759