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Axisymmetric smoothed particle hydrodynamics with self-gravity

Garcia-Senz, D. and Relaño, A. and Cabezón, R. M. and Bravo, E.. (2009) Axisymmetric smoothed particle hydrodynamics with self-gravity. Monthly Notices of the Royal Astronomical Society, 392. pp. 346-360.

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Official URL: https://edoc.unibas.ch/68728/

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Abstract

The axisymmetric form of the hydrodynamic equations within the smoothed particle hydrodynamics (SPH) formalism is presented and checked using idealized scenarios taken from astrophysics (free fall collapse, implosion and further pulsation of a Sun-like star), gas dynamics (wall heating problem, collision of two streams of gas) and inertial confinement fusion (ablative implosion of a small capsule). New material concerning the standard SPH formalism is given. That includes the numerical handling of those mass points which move close to the singularity axis, more accurate expressions for the artificial viscosity and the heat conduction term and an easy way to incorporate self-gravity in the simulations. The algorithm developed to compute gravity does not rely in any sort of grid, leading to a numerical scheme totally compatible with the Lagrangian nature of the SPH equations.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann)
10 Zentrale universitäre Einrichtungen > SciCore
UniBasel Contributors:Cabezon, Ruben M.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Oxford University Press
ISSN:0035-8711
e-ISSN:1365-2966
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:08 Oct 2019 09:50
Deposited On:08 Oct 2019 09:50

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