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add new rotating 40Msun to cc test_suite for testing #755

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It had been brought up many times that we should have a test case that demonstrates the evolution of a rotating model to CC. Here is a new test case for a 40Msun rotating model that evolves from pms to cc. This is a tweaked version of the model shared in this issue #651, from which this pr is sponsored. Since it is not always so easy to hit cc, this test_suite uses u_flag for the evolution to CC. I welcome and encourage anyone to modify this test_suite how they see fit and take ownership! One could even try using u_flag earlier if you'd like, although you might see some pulsation development at the surface.

@Debraheem Debraheem added the test_suite Issue in test_suite case label Nov 30, 2024
Debraheem and others added 2 commits November 29, 2024 22:52
try with v_flag = .true. in inlist_to_cc
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fyi, I switched off u_flag and stuck with v_flag in the last commit, although I kept the options for u_flag available. The model seems to work fine, although I turned off drag_coefficient in inlist_to_cc as damping the waves generated from burning seems problematic and might even crash the model.

Previously we had min_convective_gap=1 which imposes at least 1
pressure scale height between convective zones and merges convective
zones separated by less. This lead to a massive c12 injestion which is
likely unphysical.

I've now set this to 0.1, which prevents that injestion and makes the
model run more smoothly.

Minor tweaks in the README.rst for readability (correcting also a
spurious quoted Z).
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