<div dir="ltr">Jens<div><br></div><div>Yes, Cartoon2D should be possible with GRHydro. Apart from certain technical difficulties (choosing correct coordinates, number of ghost points, etc.), the largest problem I expect is that Cartoon2D will interpolate the solution, and interpolation is not a conservative operation. Thus I'd expect problems near shocks, discontinuities, and surfaces -- problems in the sense of "the hydro scheme is inaccurate", not in the sense of "segfault" or "nan".</div><div><br></div><div>Most likely -- and I have no hard information on which to base my opinion -- what is necessary is a very careful debugging of your parameter file. It's difficult to explain this in an email (and I might also be wrong) -- feel free to call in next Monday for more in-person advice.</div><div><br></div><div>-erik</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 1, 2016 at 5:51 AM, Jens Mahlmann <span dir="ltr"><<a href="mailto:jensmahl@alumni.uv.es" target="_blank">jensmahl@alumni.uv.es</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear all,<br>
<br>
I am currently trying to set up an easy GRMHD simulation using axial<br>
symmetry. In the documentation I find the thorn Cartoon2D recommended<br>
for general axisymmetric problems. Is the use of Cartoon2D possible with<br>
evolutions in GRHydro? Doing my setup I do find a lot of NaNs in the<br>
Prim2Con routines.<br>
<br>
Thank you and my best from Valencia<br>
<br>
Jens<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Erik Schnetter <<a href="mailto:schnetter@cct.lsu.edu" target="_blank">schnetter@cct.lsu.edu</a>><br><a href="http://www.perimeterinstitute.ca/personal/eschnetter/" target="_blank">http://www.perimeterinstitute.ca/personal/eschnetter/</a></div>
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