Sorry lan Hinder, I miss-understood your words "constraints". I thought you are asking me whether I give the initial data some initial velocity so that it can surround the BH stably (if there is only one BH).
Now I know your meaning, and I am trying to solve them. Thank you. Yours, Zhi-Chao. 2017-08-18 22:55 GMT+08:00 赵志超 <[email protected]>: > 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. > > Yours, > Zhi-Chao. > > > 2017-08-18 22:43 GMT+08:00 Ian Hinder <[email protected]>: > >> >> On 18 Aug 2017, at 10:05, 赵志超 <[email protected]> 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 >> >> > > > -- > 赵志超 > 中国科学院高能物理研究所 > 中国 北京 > 18401696963 > [email protected] > -- 赵志超 中国科学院高能物理研究所 中国 北京 18401696963 [email protected]
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