Data Formatting
The library uses a specific format to allow the field to read the variables in the repository.
The formatting type is the same as used in Blastnet. In addition to the main variables, some scalars are added to manage the computation of the various terms. The files must have a unique distinctive name, same as the a
for example, my_field.Y_O2 will give an error, but my_field.YO2 will return the Scalar3D attribute of the object my_field.