scholarly journals Three-dimensional test particle simulation of the 17-18 March 2013 CME shock-driven storm

2015 ◽  
Vol 42 (14) ◽  
pp. 5679-5685 ◽  
Author(s):  
Zhao Li ◽  
Mary Hudson ◽  
Brian Kress ◽  
Jan Paral
Keyword(s):  
Test Particle ◽  
Three Dimensional ◽  
Particle Simulation

Three-dimensional particle simulation of back-sputtered carbon in electric propulsion test facility

2017 ◽  
Vol 132 ◽  
pp. 161-169 ◽  
Author(s):  
Hongru Zheng ◽  
Guobiao Cai ◽  
Lihui Liu ◽  
Shengfei Shang ◽  
Bijiao He
Keyword(s):  
Electric Propulsion ◽  
Three Dimensional ◽  
Particle Simulation ◽  
Test Facility

Thermo-mechanical coupling particle simulation of three-dimensional large-scale non-isothermal problems

2017 ◽  
Vol 34 (5) ◽  
pp. 1551-1571 ◽  
Author(s):  
Ming Xia
Keyword(s):  
Large Scale ◽  
Three Dimensional ◽  
Simulation Method ◽  
Particle Simulation ◽  
Similarity Criteria ◽  
Particle Model ◽  
Length Scale ◽  
Content Type ◽  
Mechanical Coupling ◽  
Particle Simulation Method

Purpose The main purpose of this paper is to present a comprehensive upscale theory of the thermo-mechanical coupling particle simulation for three-dimensional (3D) large-scale non-isothermal problems, so that a small 3D length-scale particle model can exactly reproduce the same mechanical and thermal results with that of a large 3D length-scale one. Design/methodology/approach The objective is achieved by following the scaling methodology proposed by Feng and Owen (2014). Findings After four basic physical quantities and their similarity-ratios are chosen, the derived quantities and its similarity-ratios can be derived from its dimensions. As the proposed comprehensive 3D upscale theory contains five similarity criteria, it reveals the intrinsic relationship between the particle-simulation solution obtained from a small 3D length-scale (e.g. a laboratory length-scale) model and that obtained from a large 3D length-scale (e.g. a geological length-scale) one. The scale invariance of the 3D interaction law in the thermo-mechanical coupled particle model is examined. The proposed 3D upscale theory is tested through two typical examples. Finally, a practical application example of 3D transient heat flow in a solid with constant heat flux is given to illustrate the performance of the proposed 3D upscale theory in the thermo-mechanical coupling particle simulation of 3D large-scale non-isothermal problems. Both the benchmark tests and application example are provided to demonstrate the correctness and usefulness of the proposed 3D upscale theory for simulating 3D non-isothermal problems using the particle simulation method. Originality/value The paper provides some important theoretical guidance to modeling 3D large-scale non-isothermal problems at both the engineering length-scale (i.e. the meter-scale) and the geological length-scale (i.e. the kilometer-scale) using the particle simulation method directly.

scholarly journals Ion Dynamics in the Meso-scale 3-D Kelvin–Helmholtz Instability: Perspectives From Test Particle Simulations

2021 ◽  
Vol 8 ◽  
Author(s):  
Xuanye Ma ◽  
Peter Delamere ◽  
Katariina Nykyri ◽  
Brandon Burkholder ◽  
Stefan Eriksson ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Reconnection ◽  
Test Particle ◽  
Acoustic Waves ◽  
Particle Simulation ◽  
Three Dimensions ◽  
Small Scale ◽  
Physical Processes ◽  
Length Scales ◽  
Ion Species

Over three decades of in-situ observations illustrate that the Kelvin–Helmholtz (KH) instability driven by the sheared flow between the magnetosheath and magnetospheric plasma often occurs on the magnetopause of Earth and other planets under various interplanetary magnetic field (IMF) conditions. It has been well demonstrated that the KH instability plays an important role for energy, momentum, and mass transport during the solar-wind-magnetosphere coupling process. Particularly, the KH instability is an important mechanism to trigger secondary small scale (i.e., often kinetic-scale) physical processes, such as magnetic reconnection, kinetic Alfvén waves, ion-acoustic waves, and turbulence, providing the bridge for the coupling of cross scale physical processes. From the simulation perspective, to fully investigate the role of the KH instability on the cross-scale process requires a numerical modeling that can describe the physical scales from a few Earth radii to a few ion (even electron) inertial lengths in three dimensions, which is often computationally expensive. Thus, different simulation methods are required to explore physical processes on different length scales, and cross validate the physical processes which occur on the overlapping length scales. Test particle simulation provides such a bridge to connect the MHD scale to the kinetic scale. This study applies different test particle approaches and cross validates the different results against one another to investigate the behavior of different ion species (i.e., H+ and O+), which include particle distributions, mixing and heating. It shows that the ion transport rate is about 1025 particles/s, and mixing diffusion coefficient is about 1010 m2 s−1 regardless of the ion species. Magnetic field lines change their topology via the magnetic reconnection process driven by the three-dimensional KH instability, connecting two flux tubes with different temperature, which eventually causes anisotropic temperature in the newly reconnected flux.

Three-dimensional parallelized fully-electromagnetic particle simulation code UNIPIC-3D

2010 ◽  
Vol 22 (9) ◽  
pp. 2103-2110
Author(s):  
陈再高 Chen Zaigao ◽  
王建国 Wang Jianguo ◽  
张殿辉 Zhang Dianhui ◽  
王玥 Wang Yue ◽  
刘纯亮 Liu Chunliang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Particle Simulation ◽  
Simulation Code

scholarly journals Test particle simulation of non-ambipolar ion diffusion in tokamaks

2000 ◽  
Vol 40 (9) ◽  
pp. 1587-1596 ◽  
Author(s):  
T.P Kiviniemi ◽  
J.A Heikkinen ◽  
A.G Peeters
Keyword(s):  
Test Particle ◽  
Particle Simulation ◽  
Ion Diffusion

Three-dimensional particle simulation of drift-wave fluctuations in a sheared magnetic field

1986 ◽  
Vol 57 (26) ◽  
pp. 3269-3272 ◽  
Author(s):  
R. D. Sydora ◽  
J. N. Leboeuf ◽  
D. R. Thayer ◽  
P. H. Diamond ◽  
T. Tajima
Keyword(s):  
Magnetic Field ◽  
Three Dimensional ◽  
Particle Simulation ◽  
Drift Wave
Sign in / Sign up

Export Citation Format

Share Document