Hi Guido,
I won't have time to look at this carefully for a little while, but one
easy thing to try might be to redo your analysis, but use a version of yt
built from source using the yt-4.0 branch. You'll need to clone the yt
repository, checkout the yt-4.0 branch, and build from source by doing
"python setup.py develop", after ensuring that numpy and cython are already
installed.
yt 4.0 will move from using yt.units to a new unit library based on
yt.units called unyt (github.com/yt-project/unyt). When we updated the
yt.units codebase to become unyt, there were some issues with magnetic
field units that were resolved and it's possible that you're hitting a bug
in yt.units and simply using yt-4.0 will fix this issue. Worth a try anyway!
If that doesn't help one of us will hopefully be able to look at this more
closely sometime soon.
-Nathan
On Thu, Nov 14, 2019 at 10:40 AM Guido Granda Muñoz
Hello yt users, I'm trying to understand magnetic field units used in yt Since I found something that looks strange to me. As stated on the yt website, it uses cgs units just like FLASH. I'm sending the code bellow, and it does the following: 1) I use yt to trace a ortho ray 2) using that ray I get the magnetic field a gas pressure 3) from the magnetic fiedl I get the magnetic pressure 4) I add gas pressure and magnetic field pressure 5) The answer is wrong, and I don't know why
The data file is here: http://use.yt/upload/a95035d4 The code is here: http://paste.yt-project.org/show/178/
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