Hi Roland,

Yes, the routines of PPM for "poly" are highly suspicious. I can't make comparisons for the different numbers but the star didn't rotate very fast. The evolution pattern (e.g. rho.max) was different, resulting in a black hole with an wrong mass, contrary to the case with the velocity reconstruction. I'm sorry I can't continue the test at the moment but MP5+Ideal EOS was also good without showing any difference.

Yours,

Hee Il

2014-12-05 16:23 GMT+09:00 Roland Haas <roland.haas@physics.gatech.edu>:
Hello Hee Il,

> Even though it may not be popularly used, Wv-reconstruction for
> PPM+Polytropic EoS doesn't seem to work properly. It gives significantly
> different result compared to the one with velocity reconstruction. I have
> seen at least the followings are fine;
>
> 2nd order ENO + Poly EoS (cf. crashed with 3rd order ENO)
> PPM + Ideal Fluid EoS
> 5th order WENO + Ideal Fluid EoS (cf. No poly EoS supports in WENO)
>
> The tests have been done with Herschel and partly with Noether.
Just to be very sure: you see these issues only when using polytropic
EOS, ie Ideal_Fluid EOS is fine? I am asking because for some of the
routines there are two copies, a Ideal_Fluid one and a 2D_Polytrope one
and only the later would contain the possible bug if you only see it for
polytropes. Note that reconstruct_Wv does (by design) give different
answers than the direct velocity reconstruction, in particular when the
velocities are high. Are the "different" numbers you see "obviously wrong"?

Yours,
Roland

--
My email is as private as my paper mail. I therefore support encrypting
and signing email messages. Get my PGP key from http://keys.gnupg.net.




_______________________________________________
Users mailing list
Users@einsteintoolkit.org
http://lists.einsteintoolkit.org/mailman/listinfo/users