Results 11 to 20 of about 512,842 (292)

GEMPIC: geometric electromagnetic particle-in-cell methods [PDF]

open access: yesJournal of Plasma Physics, 2017
We present a novel framework for finite element particle-in-cell methods based on the discretization of the underlying Hamiltonian structure of the Vlasov–Maxwell system. We derive a semi-discrete Poisson bracket, which retains the defining properties of a bracket, anti-symmetry and the Jacobi identity, as well as conservation of its Casimir invariants,
Michael Kraus   +3 more
openaire   +4 more sources

Classical radiation reaction in particle-in-cell simulations [PDF]

open access: yesComputer Physics Communications, 2016
12 pages, 8 ...
M. Vranic   +3 more
openaire   +6 more sources

PIC Simulations of Continuously Driven Mirror and Ion Cyclotron Instabilities in High Beta Astrophysical and Heliospheric Plasmas [PDF]

open access: yes, 2015
We use particle-in-cell (PIC) simulations to study the nonlinear evolution of ion velocity space instabilities in an idealized problem in which a background velocity shear continuously amplifies the magnetic field.
Quataert, Eliot   +2 more
core   +2 more sources

Positive Streamer Initiation in SF6/CO2 Based on Zener’s Field Ionization

open access: yesIEEE Access, 2023
In this study, experiments were performed to measure the inception and breakdown voltages of SF6/CO2 mixed gases with varying mixing ratios at two different pressures (1 and 2 bar).
Muhammad Farasat Abbas   +5 more
doaj   +1 more source

Study on the influence of magnetic field on the performance of a 5 kW hall thruster

open access: yesFrontiers in Materials, 2023
Hall thruster is a kind of plasma optics device, which is used mainly in space propulsion. To study the influence of magnetic field on the performance of a 5 kW hall thruster, a two-dimensional PIC-MCC model was built.
L. Yang, P. Y. Wang, T. Wang
doaj   +1 more source

Ion acceleration in the ‘dragging field’ of a light-pressure-driven piston

open access: yesNew Journal of Physics, 2014
We propose a new acceleration scheme by employing the enormous electric potential behind a light-pressure-driven piston, namely ‘dragging field acceleration’.
Liangliang Ji   +2 more
doaj   +1 more source

2D Planar PIC Simulation of Space Charge Limited Current With Geometrical Parameters, Varying Temporal-Profile and Initial Velocities

open access: yesIEEE Access, 2022
In this paper, we simulated the space-charge effect current by the full electromagnetic particle-in-cell (PIC) code UNIPIC in a planar gap. Compared with Lau’s numerical work, we introduce the applied voltage $U$ , gap separation $D ...
Jiannan Chen   +4 more
doaj   +1 more source

Study the Effect the Laser Intensity on the Behavior of the Kinetic Energy, Drift Energy and the Total Energy of the Silver Plasma [PDF]

open access: yesEngineering and Technology Journal, 2020
The particle-in-cell plasma simulation program in two dimensions was developed to display the properties of silver plasma under the effect of Ruby laser 694.3 nm with different intensities; 1012Wcm-2, 1015 Wcm-2, 1018 Wcm-2, and 1020 Wcm-2.
Esam Tawfiq
doaj   +1 more source

Physics-informed neural networks for solving forward and inverse Vlasov–Poisson equation via fully kinetic simulation

open access: yesMachine Learning: Science and Technology, 2023
The Vlasov–Poisson equation is one of the most fundamental models in plasma physics. It has been widely used in areas such as confined plasmas in thermonuclear research and space plasmas in planetary magnetospheres.
Baiyi Zhang   +5 more
doaj   +1 more source

SHARP: A Spatially Higher-order, Relativistic Particle-in-Cell Code [PDF]

open access: yes, 2017
Numerical heating in particle-in-cell (PIC) codes currently precludes the accurate simulation of cold, relativistic plasma over long periods, severely limiting their applications in astrophysical environments. We present a spatially higher-order accurate
Broderick, Avery E.   +5 more
core   +3 more sources

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