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Introducing ZEUS-MP: A 3D, Parallel, Multiphysics Code for Astrophysical Fluid Dynamics
[article]
2000
arXiv
pre-print
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ZEUS-MP is a follow-on to the sequential ZEUS-2D and ZEUS-3D codes developed and disseminated by the Laboratory for Computational Astrophysics (lca.ncsa.uiuc.edu) at NCSA. ...
Some parallel performance results are presented as well as an application to turbulent star formation. ...
Also available is a new 3D visualization tool called LCA Vision zeus.ncsa.uiuc.edu/∼miksa/LCAVision1.0.html. ...
arXiv:astro-ph/0005109v1
fatcat:fco6uups2najhhhklajkzbekgq
Visualizing the world's largest turbulence simulation
[article]
2019
arXiv
pre-print
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In this exploratory submission we present the visualization of the largest interstellar turbulence simulations ever performed, unravelling key astrophysical processes concerning the formation of stars ...
Besides revealing features of turbulence with an unprecedented resolution, the visualizations brilliantly showcase the stretching-and-folding mechanisms through which astrophysical processes such as supernova ...
and astrophysics. ...
arXiv:1910.07850v1
fatcat:fc6pt5jjs5he5cxkp2554t7iry
Visualization of Large Scientific Datasets - Analysis of Numerical Simulation Data and Astronomical Surveys Catalogues
2015
Proceedings of the 6th International Conference on Information Visualization Theory and Applications
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Recently, the SDvision 3D visualization software has been improved to cope with the analysis of astronomical surveys catalogues, databases of multiple data products including redshifts, peculiar velocities ...
We present in this paper the SDvision code capabilities with examples of visualization of cosmology and astrophysical simulations realized with hydrodynamics codes, and more results in other domains of ...
Figure 1 : 1 the SDvision interface used to visualize a MHD simulation of turbulences in the convection zone of the Sun. ...
doi:10.5220/0005300901170122
dblp:conf/grapp/ThoorisP15
fatcat:nos644ailjfbhpl3qxtbgqhkoi
LARGE-SCALE MAGNETIC STRUCTURE FORMATION IN THREE-DIMENSIONAL MAGNETOHYDRODYNAMIC TURBULENCE
2013
Astrophysical Journal
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2013 pre-print arXiv:1309.2812v1 fatcat:og7zkk3br5hr5jlvpvg6kvo4eiOther Versions
The inverse cascade of magnetic helicity in 3D-MHD turbulence is believed to be one of the processes responsible for large scale magnetic structure formation in astrophysical systems. ...
In this work we present an exhaustive set of high resolution direct numerical simulations (DNS) of both forced and decaying 3D-MHD turbulence, to understand this structure formation process. ...
CONCLUSIONS A set of homogeneous forced and decaying 3D-MHD turbulence simulations were conducted. ...
doi:10.1088/0004-637x/778/1/21
fatcat:izqgsy2nsfa5fafvfeyqsukt6y
Diagnosing Turbulence in the Neutral and Molecular Interstellar Medium of Galaxies
[article]
2021
arXiv
pre-print
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In this review article we address the growing importance of MHD turbulence in many fields of astrophysics and review statistical diagnostics for studying interstellar and interplanetary turbulence. ...
We conclude by describing several open-source tools for the astrophysical community to use when dealing with turbulence. ...
MHD scalings critically inform on how turbulence affects various astrophysical applications. ...
arXiv:2106.02239v1
fatcat:rfs4cc3hyrgd7gsqctvtnpqsem
Measurement of MHD turbulence properties by synchrotron radiation techniques
[article]
2022
arXiv
pre-print
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It is well-known that magnetohydrodynamic (MHD) turbulence is ubiquitous in astrophysical environments. ...
The correct understanding of the fundamental properties of MHD turbulence is a prerequisite for revealing many key astrophysical processes. ...
FUNDAMENTALS OF MHD TURBULENCE THEORY
Turbulence driving mechanism The turbulence energy source driving varies with different astrophysical environments. ...
arXiv:2203.09154v1
fatcat:qpa4qkassvcdbb3djs6m57y6cq
Measurement of MHD Turbulence Properties by Synchrotron Radiation Techniques
2022
Frontiers in Astronomy and Space Sciences
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It is well known that magnetohydrodynamic (MHD) turbulence is ubiquitous in astrophysical environments. ...
The correct understanding of the fundamental properties of MHD turbulence is a pre-requisite for revealing many key astrophysical processes. ...
FUNDAMENTALS OF MHD TURBULENCE THEORY
Turbulence Driving Mechanism The turbulence energy source driving varies with different astrophysical environments. ...
doi:10.3389/fspas.2022.869370
fatcat:bvxtau4tc5bxtcodrrvjksvgmq
3D turbulent reconnection: Theory, tests, and astrophysical implications
2020
Physics of Plasmas
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2020 pre-print arXiv:2001.00868v1 fatcat:62fg42lllfbhvbills7qaa3oia
Astrophysical flows normally have very large Reynolds numbers and are expected to be turbulent, in agreement with observations. ...
We show that turbulent reconnection dramatically affects the key astrophysical processes, e.g., star formation, turbulent dynamo, acceleration of cosmic rays. ...
Turbulence makes the 2D and 3D even more different as the nature of MHD turbulence in 3D is very different. ...
doi:10.1063/1.5110603
fatcat:hfhaule6o5h3jkm3rpkypyhwiy
The Catalogue for Astrophysical Turbulence Simulations (CATS)
[article]
2020
arXiv
pre-print
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Turbulence is a key process in many fields of astrophysics. ...
CATS includes magnetohydrodynamic (MHD) turbulent box simulation data products generated by the public codes athena++, arepo, enzo, and flash. ...
In this paper we present a new repository for MHD astrophysical turbulence simulations: The Catalogue for Astrophysical Turbulence Simulations (CATS). ...
arXiv:2010.11227v1
fatcat:wbyte7xoerfzfglsxnmasvtgie
Relation of astrophysical turbulence and magnetic reconnection
2012
Physics of Plasmas
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2011 pre-print arXiv:1112.0022v1 fatcat:w5tijoczv5asxk3bhoukedsgmq
Astrophysical fluids are generically turbulent and this must be taken into account for most transport processes. ...
We show the intrinsic interdependence and interrelation of magnetic turbulence and magnetic reconnection, in particular, that strong magnetic turbulence in 3D requires reconnection and 3D magnetic turbulence ...
of 3D turbulence. ...
doi:10.1063/1.3672516
fatcat:niuygksfcbgrdegjugoqeutgy4
Theory and Applications of Non-relativistic and Relativistic Turbulent Reconnection
[chapter]
2016
Astrophysics and Space Science Library
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2015 pre-print arXiv:1512.03066v1 fatcat:jbvquhinsjgczpagc2mbql3bui
Realistic astrophysical environments are turbulent due to the extremely high Reynolds numbers. ...
We stress that not only astrophysical turbulence is ubiquitous, but also magnetic reconnection itself induces turbulence. ...
Theory of weak and strong MHD turbulence MHD theory is applicable to astrophysical plasmas at sufficiently large scales and for many astrophysical situations the Alfvénic turbulence, which is the most ...
doi:10.1007/978-3-319-26432-5_11
fatcat:3wh6n73hxrfi7gaj2l74htuxdi
THE ROLE OF TURBULENT MAGNETIC RECONNECTION IN THE FORMATION OF ROTATIONALLY SUPPORTED PROTOSTELLAR DISKS
2012
Astrophysical Journal
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2011 pre-print arXiv:1109.3716v1 fatcat:4n5eomxjane3vd4orp2xh7nkba
By means 3D MHD simulations, we show that this mechanism is able to transport magnetic flux to the outskirts of the disk progenitor at time scales compatible with the collapse, allowing the formation of ...
Since MHD turbulence is expected to be present in protostellar disks, this is a natural mechanism for removing magnetic flux excess and allowing the formation of these disks. ...
In order to compare our turbulent MHD model with other rotating disk formation models, we also performed 3D simulations of a pure hydrodynamical, an ideal MHD and a resistive MHD model with a hyper-resistivity ...
doi:10.1088/0004-637x/747/1/21
fatcat:rbhmhii6xjfdth2fp4irg36hqi
Magnetic Reconnection in Astrophysical Environments
[chapter]
2014
Astrophysics and Space Science Library
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2014 pre-print arXiv:1407.6356v1 fatcat:unkrigca7vfgpf5btosdqgvy5y
We consider magnetic reconnection in realistic 3D geometry in the presence of turbulence. ...
We show that the predicted dependences of the reconnection rates on the level of MHD turbulence make the generally accepted Goldreich \& Sridhar (1995) model of turbulence self-consistent. ...
The research is supported by the Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas. ...
doi:10.1007/978-3-662-44625-6_12
fatcat:i7mjvo4fajfahjc6x3jnp3vdqi
Finite dissipation and intermittency in magnetohydrodynamics
2009
Physical Review E
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2009 pre-print arXiv:0903.3265v1 fatcat:nungy7ui6rfrpnana3nqwysu4y
We present an analysis of data stemming from numerical simulations of decaying magnetohydrodynamic (MHD) turbulence up to grid resolution of 1536^3 points and up to Taylor Reynolds number of 1200. ...
Furthermore, intermittency of MHD flows, as determined by the spectrum of anomalous exponents of structure functions of the velocity and the magnetic field, is stronger than for fluids, confirming earlier ...
Mathematically, this is an open problem in 3D for fluids and MHD, and yet it is central for astrophysics where dissipative structures, reconnection and acceleration of particles are well observed [4] ...
doi:10.1103/physreve.80.025401
pmid:19792189
fatcat:cjk2tvip2jhxblh7jtzxwnwnei
Reconnection in turbulent astrophysical fluids
[article]
2014
arXiv
pre-print
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We analyze the connection of this process with turbulence which is ubiquitous in astrophysical environments. ...
In particular, magnetic reconnection can initially develop through tearing, but the transition to the turbulent state is expected for astrophysical systems. ...
The research is supported by the Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas. G.K. acknowledges support from FAPESP (projects no. 2013/04073-2 and 2013/18815-0). ...
arXiv:1408.3134v1
fatcat:l6k4nwxqxve3xms7bjnd2nbx2u
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