3013 add class methods for each current drive efficiency calc along with suitable tests

[chris-ashe]

This PR focusses on refactoring current_drive.py so that it has separate classes for each of the current drive schemes and tidies up and expands the output.

Naming changes

New variables

eta_cd_hcd_secondary
p_hcd_injected_current_total_mw

Variable changes

pinjwpfix -> p+hcd_secondary_electric_mw
pinjwp -> p_hcd_electric_total_mw
plhybd -> p_hcd_lowhyb_injected_total_mw
pnbeam -> p_hcd_beam_injected_total_mw
echpow -> p_hcd_ecrh_electric_mw
fvsbrnni -> f_c_plasma_non_inductive
inductive_current_fraction -> f_c_plasma_inductive
aux_current_fraction -> f_c_plasma_auxiliary

---

Code structure

Previous

New

---

Code output

Previous

New

---

🐛 Bugs

# the fixed auxiliary current
                current_drive_variables.c_hcd_secondary_driven = (
                    eta_cd_hcd_secondary
                    * (
                        current_drive_variables.p_hcd_secondary_injected_mw
                        - current_drive_variables.p_hcd_secondary_extra_heat_mw
                    )
                    * 1.0e6
                )

pnbitotfix = current_drive_variables.p_hcd_secondary_injected_mw / (
                    1.0e0
                    - current_drive_variables.f_p_beam_orbit_loss
                    + current_drive_variables.f_p_beam_orbit_loss
                    * current_drive_variables.f_p_beam_shine_through
                )

Checklist

I confirm that I have completed the following checks:

• My changes follow the PROCESS style guide
• I have justified any large differences in the regression tests caused by this pull request in the comments.
• I have added new tests where appropriate for the changes I have made.
• If I have had to change any existing unit or integration tests, I have justified this change in the pull request comments.
• If I have made documentation changes, I have checked they render correctly.
• I have added documentation for my change, if appropriate.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 36.66667% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 36.39%. Comparing base (302cff7) to head (255258c).
⚠️ Report is 414 commits behind head on main.

Files with missing lines	Patch %	Lines
process/stellarator.py	0.00%	9 Missing ⚠️
process/physics.py	50.00%	4 Missing ⚠️
process/io/sankey_funcs.py	0.00%	2 Missing ⚠️
process/pfcoil.py	0.00%	2 Missing ⚠️
process/main.py	50.00%	1 Missing ⚠️
process/output.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3621      +/-   ##
==========================================
+ Coverage   36.24%   36.39%   +0.15%     
==========================================
  Files          88       88              
  Lines       22090    22051      -39     
==========================================
+ Hits         8006     8025      +19     
+ Misses      14084    14026      -58     

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[Copilot]

Copilot reviewed 53 out of 62 changed files in this pull request and generated no comments.

Files not reviewed (9)

• examples/data/csv_output_large_tokamak_MFILE.DAT: Language not supported
• examples/data/large_tokamak_1_MFILE.DAT: Language not supported
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• examples/data/large_tokamak_IN.DAT: Language not supported
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• examples/data/scan_MFILE.DAT: Language not supported
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[Copilot]

Copilot reviewed 58 out of 67 changed files in this pull request and generated 2 comments.

Files not reviewed (9)

• examples/data/csv_output_large_tokamak_MFILE.DAT: Language not supported
• examples/data/large_tokamak_1_MFILE.DAT: Language not supported
• examples/data/large_tokamak_2_MFILE.DAT: Language not supported
• examples/data/large_tokamak_3_MFILE.DAT: Language not supported
• examples/data/large_tokamak_4_MFILE.DAT: Language not supported
• examples/data/large_tokamak_IN.DAT: Language not supported
• examples/data/large_tokamak_once_through_IN.DAT: Language not supported
• examples/data/scan_MFILE.DAT: Language not supported
• examples/data/scan_example_file_IN.DAT: Language not supported