[Users] error when I trying to add atmosphere to BBH evolution

赵志超 yanyuechuixue at gmail.com
Fri Aug 18 09:55:03 CDT 2017

Thank you Ian Hinder.

At the first step, I just want to add a low density fluid to the BBH
simulation (mimic the atmosphere around the BH) to see how it evolution (I
remember I had read a paper which describe this kind simulation, and I want
to repeat it.). I put the fluid static in the initial data.

I think I will give some constraints on the fluid static in the initial
data in the future. Maybe it need to write a new thorn, I think.


2017-08-18 22:43 GMT+08:00 Ian Hinder <ian.hinder at aei.mpg.de>:

> On 18 Aug 2017, at 10:05, 赵志超 <yanyuechuixue at gmail.com> wrote:
> Thank you Ian Hinder.
> Yes I want to add a low density fluid to a BBH simulation.
> I review the source code of GRHydro_InitialData Thorn's
> GRHydro_OnlyAtmo.F90 .  I found it give any position ( I mean every
> nx,ny,nz) a rho value which is a constant equal to "rho_abs_min" or
> "initial_rho_abs_min".
> so I think it can give a low density fluid to a BBH simulation.
> But it report "NAN" or "Con2Prim: count > GRHydro_countmax".
> OK, thanks for the clarification!
> I'm not an expert on GRHydro, but maybe someone else can suggest
> something?
> Are you planning to solve the constraints?
> --
> Ian Hinder
> http://members.aei.mpg.de/ianhin

中国 北京
yanyuechuixue at gmail.com
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