Hi Again, Just to let you know, I changed my resolution from 3.2 (cell size) to 1.6 and the problem went away. I will now run the full simulation and see if I can match that paper's Figure 18.
Thanks, Tony... [https://email.osu.edu/owa/attachment.ashx?id=RgAAAAAb%2fHy0wVvTSoHQx8OJXAaLBwCiA5IZrwRKTqiLVNbt4xWyAAAAAAFUAADltPc25wRDT4tJbW9en2wXAHKArVn%2fAAAJ&attcnt=1&attid0=EAD8Cse5Lj5uQ6ZJWk98Q%2blj] Anthony Shoup PhD, Senior Lecturer College of Arts & Sciences, College of Engineering Departments of Physics, Astronomy, EEIC 315 Science Bldg. | 4250 Campus Dr. Lima, OH 45807 419-995-8018 Office | 419-516-2257 Mobile [email protected]<https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&URL=mailto%3ashoup.31%40osu.edu> osu.edu<https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&URL=http%3a%2f%2fosu.edu> ________________________________ From: [email protected] <[email protected]> on behalf of Shoup, Anthony <[email protected]> Sent: Friday, March 15, 2019 10:01 PM To: Einstein Toolkit Users Subject: [Users] Conservative to primative conversion fails in TOV collapse Hi All, I have been working on reproducing the results in the paper: The Einstein Toolkit: A Community Computational Infrastructure for Relativistic Astrophysics (arXiv: 1111.3344v1 {gr-qc] 14 Nov 2011) and others as a way to teach myself how to use the Einstein Toolkit and to test out my home-built cluster computer. I am currently working on the non-rotating TOV neutron star collapse into a BH. It works well up until it fails trying to convert conserved variables into primitive variables in grhydro (see attached tovCollapse.out file). I have tried adjusting the atmosphere parameters (specifically GRHydro::rho_abs_min = 1.e-8, up from 1.e-10)., as per the suggestions in the grhydro documentation, which has helped, but I think the conversion is failing now very near where the AH will/is forming. I have included my parameter file for the simulation (I lowered evolve K from 98 to 80 just to accelerate the collapse process). Any help anyone can give would be greatly appreciated. Sincerely, Tony... [https://email.osu.edu/owa/attachment.ashx?id=RgAAAAAb%2fHy0wVvTSoHQx8OJXAaLBwCiA5IZrwRKTqiLVNbt4xWyAAAAAAFUAADltPc25wRDT4tJbW9en2wXAHKArVn%2fAAAJ&attcnt=1&attid0=EAD8Cse5Lj5uQ6ZJWk98Q%2blj] Anthony Shoup PhD, Senior Lecturer College of Arts & Sciences, College of Engineering Departments of Physics, Astronomy, EEIC 315 Science Bldg. | 4250 Campus Dr. Lima, OH 45807 419-995-8018 Office | 419-516-2257 Mobile [email protected]<https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&URL=mailto%3ashoup.31%40osu.edu> osu.edu<https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&URL=http%3a%2f%2fosu.edu>
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