BOOZ_XFORM

Convert VMEC output data to Boozer coordinates for generating FAR3d input files. No need to compile STELLOPT to read LIBSTELL libs.
About FAR3d: Gyro-Landau closure model for tokamaks and stellarators.

FAR3d GitHub Repo: https://github.com/DSfusion/FAR3d
Original Booz_xform code: https://github.com/DSfusion/FAR3d/tree/master/BOOZ_XFORM

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Compilation on MIT PSFC MFEStation/others

Uses CMake and a Conda environment.

Note: Make sure to set your library paths correctly in CMakeLists.txt as needed.

Steps

1. Create and activate your Conda environment:

   conda create -n booz_env
   conda activate booz_env

2. Clone and build the code:

   cd BOOZ_xform/
   mkdir build
   cd build/
   cmake ..
   make

This will create the executable xbooz_xform in the build folder.

3. How to run (must have VMEC output wout_test.nc in same folder)

   ./xbooz_xform in_booz.test far

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Test cases are available in the Equilibria folder.

Enjoy!

Output Files

When you run BOOZ_XFORM, it will create the following files in your working directory:

• bmnc_booz.txt
• gimnc_booz.txt
• gmnc_booz.txt
• grrmnc_booz.txt
• grrojmnc_booz.txt
• grtmnc_booz.txt
• grtojmnc_booz.txt
• gttmnc_booz.txt
• gttojmnc_booz.txt
• jbgrrmnc_booz.txt
• jbgrtmnc_booz.txt
• jbgttmnc_booz.txt
• phi_1b.txt
• phi_2b.txt
• phi_3b.txt
• pmns_booz.txt
• prfeq_vmec.txt
• R_Z_1.txt, R_Z_1b.txt
• R_Z_2.txt, R_Z_2b.txt
• R_Z_3.txt, R_Z_3b.txt
• rmnc_booz.txt
• sum_gmncb.txt
• woutb
• zmns_booz.txt

The most important file for running FAR3d is woutb. See FAR3d User Guide (PDF) for details.

Feel free to contact: arunavk@mit.edu