An Extension of Gmunu: General-relativistic Resistive Magnetohydrodynamics Based on Staggered-meshed Constrained Transport with Elliptic Cleaning
Astrophysical Journal, Supplement Series, ISSN: 0067-0049, Vol: 261, Issue: 2
2022
- 7Citations
- 8Captures
Metric Options: CountsSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
We present the implementation of general-relativistic resistive magnetohydrodynamics solvers and three divergence-free handling approaches adopted in the General-relativistic multigrid numerical (Gmunu) code. In particular, implicit-explicit Runge-Kutta schemes are used to deal with the stiff terms in the evolution equations for small resistivity. The three divergence-free handling methods are (i) hyperbolic divergence cleaning (also known as the generalized Lagrange multiplier), (ii) staggered-meshed constrained transport schemes, and (iii) elliptic cleaning through a multigrid solver, which is applicable in both cell-centered and face-centered (stagger grid) magnetic fields. The implementation has been tested with a number of numerical benchmarks from special-relativistic to general-relativistic cases. We demonstrate that our code can robustly recover from the ideal magnetohydrodynamics limit to a highly resistive limit. We also illustrate the applications in modeling magnetized neutron stars, and compare how different divergence-free handling methods affect the evolution of the stars. Furthermore, we show that the preservation of the divergence-free condition of the magnetic field when using staggered-meshed constrained transport schemes can be significantly improved by applying elliptic cleaning.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85135114298&origin=inward; http://dx.doi.org/10.3847/1538-4365/ac6cec; https://iopscience.iop.org/article/10.3847/1538-4365/ac6cec; https://dx.doi.org/10.3847/1538-4365/ac6cec; https://validate.perfdrive.com/9730847aceed30627ebd520e46ee70b2/?ssa=3254594f-3380-419e-a3e2-96b004778c64&ssb=63647297005&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.3847%2F1538-4365%2Fac6cec&ssi=3846ed40-cnvj-498c-b9f4-edac747ee4ea&ssk=botmanager_support@radware.com&ssm=42975584160214494401837975374409601&ssn=8c6b2ea53b7fa44ced63fdd4bc1dbea0a40f3b06693a-ab42-47cc-82f0e6&sso=11bafa70-560bf8d25e53615c74e0cc2e9115fe107b7486950ce00277&ssp=62871464601735652499173638765574485&ssq=22850638023028660732997305454860726696568&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJ1em14IjoiN2Y5MDAwYTNkZTI2M2EtZDNkYy00NDMzLTk4NzMtNmZmYTk0NjkwMDhhOC0xNzM1Njk3MzA1NTMyNjgyOTI1MjM2LWNjYTkyYTVmZmExZDg1N2Y0MDE4MCIsIl9fdXptZiI6IjdmNjAwMGM4ZDgzYTQ0LTU3NjQtNDMwZi1iZThkLTdmZTc5N2RiMGEzMzE3MzU2OTczMDU1MzI2ODI5MjUyMzYtZGZjZDdlNGE1NjEzMTNkNTQwMTgwIiwicmQiOiJpb3Aub3JnIn0=
American Astronomical Society
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know