Read profile from file for RANS

[hgopalan]

Is this feature request related to a problem?

For RANS simulations, we often do not need precursor simulations and can use one-dimensional profile at inflow to drive the simulations. There is support for power law profile option using UDFs but I would like to read my profile from a file and apply the inflow BC to velocity, temperature, viscosity and turbulent kinetic energy. Extending the UDF path to read from file will help but I have been struggling with the best way to set it up.

Describe the preferred solution

A custom scalar model with support for reading a profile from file.

Additional context

RANS simulations for wind siting is often performed using a 1-D profile at inflow.