Hello, I have a 2D axisymmetric domain, where I have imposed a convective heat flux on the wall. This convective heat flux depends on T_ext_ which is a function of the axial position (so it increases linearly as we move down the domain).
Once I run the project, I get the results that I expected. The temperature inside the domain is sometimes hotter and sometimes colder than the external temperature T_ext_. I want to plot a quiver/arrows plot that will show:
-arrows going towards the outside of the wall, in the regions where the wall is colder than the domain,
-arrows going towards inside of the domain, in the regions where the wall is hotter than the domain
However, no matter how I plot the arrows (convective heat flux, conductive heat flux, total heat flux), I can't get them to do that, even though the temperature profile does show that there are both such regions.
I went through the documentation, and the names of the fluxes don't exactly match the variable names that I have, because I am plotting ht.cfluxr and ht.cfluxz (and ht.dfluxr, htdfluxz for conductive), but the documentation says I should plot ht.ccfluxr and ht.ccfluxz to get the flux out of the boundary which is what I want. However whenever I input this it does not recognise the variable name.