Hello,
expert in Matlab and Fotran programming here. I have a Master degree in CFD, so I'm familiar with FD, FVM, FE methods.
Please send your current Matlab code in order to evaluate how much time will take to convert to Fortran. Also, let me know what Fortran compiler you use and what operating system.
I will keep the translation as straightforward as possible (simple and clear code that follows your name conventions from Matlab). This will let you easily understand the Fortran code.
Thanks and let me know if you are interested to work with me,
Paul