Complete OpenPOPCON Refactor

[matt-pharr]

Through the MANTA project, many updates were made to OpenPOPCON that make working with negative triangularity, as well as doing scans and tokamak scoping in general, quite more efficient/effective. These changes are somewhat disparate and sprawling across several different branches on the old repository. Therefore, I am working on a complete refactor of OpenPOPCON. By doing this, I plan to:

• Rewrite all difficult to read code
• Make all helper functions compatible with numba for just-in-time compile
• Add quality of life items like dependency files
• Eliminate the omfit-classes dependency
• Add paper or book citations for all formulas
• Consolidating all code into a main library, a support library, and a run script
• Consolidating all features added in the past two years into one library with sensible settings so that no editing of the main codebase will be necessary to do flexible scoping
• Revamped plotting interface with external options
• Simple and encouraged interface for saving and loading the POPCON object as a result, along with all plots, and input files as a reference
• Keep everything very pythonic

New features added by MANTA team members include:

• Reading gEQDSK files for calculating flux surface volumes
• Using input kinetic profiles instead of assumed parabolic profiles
• Arbitrary impurity cocktails
• User-defined scaling laws + H98/89 plotting
• Constraining wall thickness and B_coil instead of B_0
• Setting target Z_eff instead of impurities
• Setting q instead of I_P
• Using q profile from gEQDSK instead of 0D estimate
• Saving and loading outputs
• Important Bug fixes

The above items I intend to have completed by EOD July 31 for use in Columbia's new reactor design course.

Additional items I am considering implementing include:

• Use of a multithreading library to run many of the (usually 40x40) grid points simultaneously
• Writing a new guide
• Try to make Jupyter friendly
• Arbitrary fuel mixtures (including D-D for non-reactor tokamaks)

I will post commits here as I work on this project. Feel free to provide feedback, and I hope to request a merge sometime late this month after I post regression tests.

[matt-pharr]

Re: Close and reopen, it seems we are not eligible for draft pull requests as this is a private repository.

[matt-pharr]

This needs to be rewritten to reflect the latest settings. Also need to create a .yaml file for this.

[matt-pharr]

Will write documentation next pull request

[matt-pharr]

OpenPOPCON 2.0 beta is ready to merge! Will open issues for remaining improvements.