scholarly journals Three-dimensional Simulation of the Fast Solar Wind Driven by Compressible Magnetohydrodynamic Turbulence

2019 ◽  
Vol 880 (1) ◽  
pp. L2 ◽  
Author(s):  
Munehito Shoda ◽  
Takeru Ken Suzuki ◽  
Mahboubeh Asgari-Targhi ◽  
Takaaki Yokoyama
Keyword(s):  
Solar Wind ◽  
Three Dimensional ◽  
Fast Solar Wind ◽  
Magnetohydrodynamic Turbulence ◽  
Dimensional Simulation

scholarly journals Uncertainties of the solar wind in-situ velocity measurements

2020 ◽  
pp. 193-197
Author(s):  
G. Gogoberidze ◽  
E. Gorgaslidze
Keyword(s):  
Solar Wind ◽  
Independent Method ◽  
Inertial Range ◽  
Velocity Measurements ◽  
Fast Solar Wind ◽  
Magnetohydrodynamic Turbulence ◽  
Velocity Fluctuations ◽  
Measurement Uncertainties ◽  
General Instrument

We study spectral features of Alfvénic turbulence in fast solar wind. We propose a general, instrument independent method to estimate the uncertainty in velocity fluctuations obtained by in-situ satellite observations in the solar wind. We show that when the measurement uncertainties of the velocity fluctuations are taken into account the less energetic Elsasser spectrum obeys a unique power law scaling throughout the inertial range as prevailing theories of magnetohydrodynamic turbulence predict.

scholarly journals SCALING OF COMPRESSIBLE MAGNETOHYDRODYNAMIC TURBULENCE IN THE FAST SOLAR WIND

2016 ◽  
Vol 829 (2) ◽  
pp. L27 ◽  
Author(s):  
S. Banerjee ◽  
L. Z. Hadid ◽  
F. Sahraoui ◽  
S. Galtier
Keyword(s):  
Solar Wind ◽  
Fast Solar Wind ◽  
Magnetohydrodynamic Turbulence

scholarly journals Full compressible 3D MHD simulation of solar wind

2020 ◽  
Vol 500 (4) ◽  
pp. 4779-4787
Author(s):  
Takuma Matsumoto
Keyword(s):  
Solar Wind ◽  
Transition Region ◽  
Solar Physics ◽  
Mass Loss Rate ◽  
Three Dimensional ◽  
Lower Atmosphere ◽  
Fast Solar Wind ◽  
Solar Mass ◽  
Mhd Simulation ◽  
Driving Mechanisms

ABSTRACT Identifying the heating mechanisms of the solar corona and the driving mechanisms of solar wind are key challenges in understanding solar physics. A full three-dimensional compressible magnetohydrodynamic (MHD) simulation was conducted to distinguish between the heating mechanisms in the fast solar wind above the open field region. Our simulation describes the evolution of the Alfvénic waves, which includes the compressible effects from the photosphere to the heliospheric distance s of 27 solar radii (R⊙). The hot corona and fast solar wind were reproduced simultaneously due to the dissipation of the Alfvén waves. The inclusion of the transition region and lower atmosphere enabled us to derive the solar mass-loss rate for the first time by performing a full three-dimensional compressible MHD simulation. The Alfvén turbulence was determined to be the dominant heating mechanism in the solar wind acceleration region (s > 1.3 R⊙), as suggested by previous solar wind models. In addition, shock formation and phase mixing are important below the lower transition region (s < 1.03 R⊙) as well.

scholarly journals Three-Dimensional Simulation Study of Plasmoid Injection into Magnetized Plasma

1998 ◽  
Vol 188 ◽  
pp. 209-210
Author(s):  
Y. Suzuki ◽  
T.-H. Watanabe ◽  
A. Kageyama ◽  
T. Sato ◽  
T. Hayashi
Keyword(s):  
Solar Wind ◽  
Simulation Study ◽  
Solar Flares ◽  
Interplanetary Medium ◽  
Three Dimensional ◽  
Magnetized Plasma ◽  
Important Process ◽  
Plasma Region ◽  
Mhd Simulations ◽  
Dimensional Simulation

Resent observations suggest that, during solar flares, plasmoids are injected into the interplanetary medium (Stewart et al., 1982). It has also been pointed out that solar wind irregularities modeled as plasmoids are penetrated into the magnetosphere (Lemaire, 1977). These plasmoid injections are considered to be an important process because they transfer mass, momentum, and energy into such magnetized plasma regions. Our objective is to investigate the dynamics of a plasmoid, which is injected into a magnetized plasma region and to reveal mechanisms to transfer them. To achieve this, we carried out three-dimensional magnetohydrodynamic (MHD) simulations.

Global Three-Dimensional Simulation of the Earth's Magnetospheric and Ionospheric Responses to Small-Scale Magnetic Flux Ropes in the Solar Wind

2018 ◽  
Vol 123 (8) ◽  
pp. 6307-6325
Author(s):  
Kyung Sun Park ◽  
Dae-Young Lee ◽  
Myeong Joon Kim ◽  
Cheong Rim Choi ◽  
Rok Soon Kim ◽  
...  
Keyword(s):  
Solar Wind ◽  
Magnetic Flux ◽  
Three Dimensional ◽  
Small Scale ◽  
Magnetic Flux Ropes ◽  
Flux Ropes ◽  
Dimensional Simulation

scholarly journals SURFACE ALFVÉN WAVE DAMPING IN A THREE-DIMENSIONAL SIMULATION OF THE SOLAR WIND

2009 ◽  
Vol 703 (1) ◽  
pp. 179-186 ◽  
Author(s):  
R. M. Evans ◽  
M. Opher ◽  
V. Jatenco-Pereira ◽  
T. I. Gombosi
Keyword(s):  
Solar Wind ◽  
Three Dimensional ◽  
Alfven Wave ◽  
Wave Damping ◽  
Dimensional Simulation

Modeling proton and electron heating in the fast solar wind

2020 ◽  
Author(s):  
L. Adhikari ◽  
G.P. Zank ◽  
L.-L. Zhao ◽  
M. Nakanotani ◽  
S. Tasnim
Keyword(s):  
Solar Wind ◽  
Fast Solar Wind ◽  
Electron Heating

Three-Dimensional Simulation of Planar Solid Oxide Fuel Cell Stack

2008 ◽  
Vol 128 (2) ◽  
pp. 459-466 ◽  
Author(s):  
Yoshitaka Inui ◽  
Tadashi Tanaka ◽  
Tomoyoshi Kanno
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Three Dimensional ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Fuel Cell Stack ◽  
Dimensional Simulation
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