Pressure-Entropy SPH: Pressure-entropy smooth-particle hydro

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kcd
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Pressure-Entropy SPH: Pressure-entropy smooth-particle hydrodynamics

Post by kcd » Sat May 11, 2013 5:05 am

[c]Pressure-Entropy SPH: Pressure-entropy smooth-particle hydrodynamics[/c][/b]
Abstract: Pressure-Entropy SPH, a modified version of GADGET-2, uses the Lagrangian “Pressure-Entropy” formulation of the SPH equations. This removes the spurious “surface tension” force substantially improving the treatment of fluid mixing and contact discontinuities. Pressure-Entropy SPH shows good performance in mixing experiments (e.g. Kelvin-Helmholtz & blob tests), with conservation maintained even in strong shock/blastwave tests, where formulations without manifest conservation produce large errors. This improves the treatment of sub-sonic turbulence and lessens the need for large kernel particle numbers.

Credit: Hopkins, Philip F.

Site: http://www.tapir.caltech.edu/~phopkins/ ... dget2p.tgz
http://adsabs.harvard.edu/abs/2013MNRAS.428.2840H

Bibcode: 2013ascl.soft05006H

ID: ascl:1305.006
Last edited by Ada Coda on Wed Jan 16, 2019 5:53 pm, edited 1 time in total.
Reason: Updated code entry.

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