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Abstract

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We describe a Godunov-type magnetohydrodynamic (MHD) code based on the Miyoshi and Kusano (2005) solver which can be used to solve various astrophysical hydrodynamic and MHD problems. The energy equation is in the form of entropy conservation. The code has been implemented on several different coordinate systems: 2.5D axisymmetric cylindrical coordinates, 2D Cartesian coordinates, 2D plane polar coordinates, and fully 3D cylindrical coordinates. Viscosity and diffusivity are implemented in the code to control the accretion rate in the disk and the rate of penetration of the disk matter through the magnetic field lines. The code has been utilized for the numerical investigations of a number of different astrophysical problems, several examples of which are shown.

Details

1009240
Subject
Cylindrical coordinates;
Computational fluid dynamics;
Coordinates;
Magnetohydrodynamics;
Astronomical models;
Energy conservation;
Cartesian coordinates;
Accretion disks;
Fluid flow;
Polar coordinates
Identifier / keyword
Astrophysics of Galaxies; Instrumentation and Methods for Astrophysics
URL
http://arxiv.org/abs/1508.00003
Title
Numerical MHD Codes for Modeling Astrophysical Flows
Author
Koldoba, A V; Ustyugova, G V; Lii, P S; Comins, M L; Dyda, S; Romanova, M M; Lovelace, R V E
Publication title
arXiv.org; Ithaca
Publication year
2015
Publication date
Jul 31, 2015
Section
Astrophysics
Publisher
Cornell University Library, arXiv.org
Source
arXiv.org
Place of publication
Ithaca
Country of publication
United States
University/institution
Cornell University Library arXiv.org
Publication subject
Biology, Statistics, Physics, Mathematics, Engineering--Electrical Engineering, Computers--Computer Engineering, Business And Economics--Banking And Finance
e-ISSN
2331-8422
Source type
Working Paper
Language of publication
English
Document type
Working Paper
Publication history
 
 
Online publication date
2015-12-16
Milestone dates
2015-07-31 (Submission v1)
Publication history
 
 
   First posting date
16 Dec 2015
DOI
https://doi.org/10.1016/j.newast.2015.10.011
ProQuest document ID
2084214274
Document URL
https://www.proquest.com/working-papers/numerical-mhd-codes-modeling-astrophysical-flows/docview/2084214274/se-2?accountid=208611
Full text outside of ProQuest
http://arxiv.org/abs/1508.00003
Copyright
© 2015. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
Last updated
2019-04-16
Database
2 databases
  • ProQuest One Academic
  • ProQuest One Academic