Programming-Phase-field-in-Fortran

The repository shows the use of Fortran programming language for the phase-field methods — model A, model B, and model C. The codes are 2D. Model A ( Allen-Cahn equation ), and Model B ( Cahn-Hilliard ) examples are given; solidification of a single component alloy is also provided.

---

Significance

• Sequential code.

• Self-explanatory comments for each section.

• Stand-alone codes.

• Code description in README files.

• Examples: FeCr alloy for model B; grain evolution for model A.

• Some of the best programming practices .

  • if statement rather than if then construct

• File savings with newunit instrinsic function.

  • Model A example

• Screen shots for each output code.

• Data availability for each code.

• Compiler comparison for further studies.

  • Model B README

• Instructions for different operating systems.

• Optimization options.

• Integrated dislin graphical software in each code:

  • Single statement quick plots.

  • Routines for continuous animation.

  • Multiplot techniques.

• gnuplot script for output files:

  • Customized color plots.

  • commands for continuous animation.

  • Multiplot approach.

Computational Tools

The simulations were performed on the system with the following details:

OS	Compilers and versions	Integrated graphics library	Output graphics library
Linux (ubuntu 20.04)	gfortran (12.1.0)	Dislin ( 11.5 )	gnuplot ( 5.4 )
Windows (10, 64 bit)	gfortran (12.1.0), intel (2021.6.0)	Dislin ( 11.5 )	gnuplot ( 5.4 )

Future work

• Whole array programming

• Procedural programming

  • internal procedures
  • external procedures

• Modular programming

• Object-oriented programming

• Parallel programming with

  • Co-arrays
  • OpenMP
  • MPI

• GPU programming with

  • CUDA Fortran
  • OpenACC

Contact

[email protected]

[email protected]