This enables time-dependent Advection Velocity in the ADR solver. Advection Velocity can be either typed in in a session file, marked as USERDEFINEDTYPE="TimeDependent"
, or it can be read from a sequence of /fld
files.
Copy @ccantwel solution for the Floquet analysis from the Incompressible solver. Eventually, if the MR approved the same approach should be used there, so time interpolation is performed by the same class.