[fabio moretti]

Hi All,

(I apologize in advance if what I'm about to ask has already been addressed in other threads: I've actually made a search over the forum, but I may have missed something relevant.)

I'm setting up a CFX CHT simulation. The problem involves a volumetric power source non-uniformly distributed over the solid domain. Information is to be loaded into a 3D interpolating user function from a rather dense 3D point cloud (namely a csv file with [X, Y, Z, Power] fields and around 1M entries).
1st issue: with such a large number of points, once the user function has been created CFX-Pre gets stuck when writing out a def file.
2nd issue: even with far smaller numbers of points (e.g. 10k), the interpolation operations (being them performed at every time-step) heavily impact on the computing time, thus making the simulation very inefficient.
My question: is there an alternate way to efficiently exploit the point cloud to set a volumetric source? Perhaps via FORTRAN?
Sub-question: would having a point cloud already mapped onto the domain's nodes be of some help?

Thanks a lot for any possible hints.

Fabio