Open BenWibking opened 8 months ago
This is actually on my list right are OpenPMD/Adios output (as we need those for another project). I already went a bit through the literature as there are some gotchas, see https://doi.org/10.1093/mnras/stt1383 and https://doi.org/10.1111/j.1365-2966.2010.16810.x with follow up work by https://doi.org/10.1051/0004-6361/201834496 and potentially also of interest (as more simple mitigation strategy compared to MC particles): https://doi.org/10.1016/j.jcp.2019.109054 and https://doi.org/10.3847/1538-4357/ac6c2b
Yes, I'm aware of this issue. I think it is solved by using the face-centered velocity from the Riemann solver (see equation 7b: https://ui.adsabs.harvard.edu/abs/2008ASPC..385..273L/abstract). I implemented this in Quokka, and it seems to work well.
It would be useful to have tracer particles, following the Parthenon example.
We could even use the marker particle advection algorithm using the time-centered, face-centered velocities: https://ui.adsabs.harvard.edu/abs/1965PhFl....8.2182H/abstract