[Users] SPH in einstein toolkit

Jonah Miller jonah.maxwell.miller at gmail.com
Tue Sep 26 09:46:42 CDT 2017

Hi Phil,

I'm not sure what the status of SPH is in the ET (my guess is nothing
public), but there is a relativistic formulation of SPH for fixed
background spacetimes developed by Rosswog:


In this picture, one would reconstruct the 4-metric from the 3-metric,
lapse, and shift to calculate the motion of the particles.



On Tue, Sep 26, 2017 at 1:29 AM, Philip Chang <chang65 at uwm.edu> wrote:

> Dear developers,
> I saw that there was a discussion back in 2015 in regard to SPH in the
> Einstein toolkit.  Have any progress been made in this regard?  I am
> especially interested in how the sph particles move (and what it means
> to move) in a 3+1 split.
> Cheers,
> Phil Chang
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