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  Axisymmetric Hydrodynamics in Numerical Relativity Using a Multipatch Method

Jesse, J., Duez, M. D., Foucart, F., Haddadi, M., Knight, A. L., Cadenhead, C. L., et al. (2020). Axisymmetric Hydrodynamics in Numerical Relativity Using a Multipatch Method. Classical and Quantum Gravity, 37(23): 235010. doi:10.1088/1361-6382/abbc8b.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-701F-A Version Permalink: http://hdl.handle.net/21.11116/0000-0007-8124-E
Genre: Journal Article

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2005.01848.pdf (Preprint), 2MB
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 Creators:
Jesse, Jerred, Author
Duez, Matthew D., Author
Foucart, Francois, Author
Haddadi, Milad, Author
Knight, Alexander L., Author
Cadenhead, Courtney L., Author
Hébert, Francois, Author
Kidder, Lawrence E., Author
Pfeiffer, Harald P.1, Author              
Scheel, Mark A., Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We describe a method of implementing the axisymmetric evolution of general-relativistic hydrodynamics and magnetohydrodynamics through modification of a multipatch grid scheme. In order to ease the computational requirements required to evolve the post-merger phase of systems involving binary compact massive objects in numerical relativity, it is often beneficial to take advantage of these system's tendency to rapidly settle into states that are nearly axisymmetric, allowing for 2D evolution of secular timescales. We implement this scheme in the Spectral Einstein Code (SpEC) and show the results of application of this method to four test systems including viscosity, magnetic fields, and neutrino radiation transport. Our results show that this method can be used to quickly allow already existing 3D infrastructure that makes use of local coordinate system transformations to be made to run in axisymmetric 2D with comparable results.

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 Dates: 2020-05-042020-11-10
 Publication Status: Published in print
 Pages: 15 pages, 8 figures
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 Rev. Type: -
 Identifiers: arXiv: 2005.01848
URI: http://arxiv.org/abs/2005.01848
DOI: 10.1088/1361-6382/abbc8b
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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: 37 (23) Sequence Number: 235010 Start / End Page: - Identifier: -