Identifying zones in fluid domain with max velocity gradients
 

Hi
I am exporting CFD data from FLUENT in the ASCII format to be read by a MATLAB algorithm which generates reduced order approximations of complete flow fields at new boundary conditions. The offline data is stored in a matrix and I have the node numbers, x and y coordinates and velocity components of the CFD solutions at my disposal.

I am working with natural convection in a differentially heated cavity in 2D.

• I need to find a way for my algorithm to automatically locate a finite set of arbitrary control surfaces in the fluid domain that corresponds to the maximum velocity gradients for the x and y components of velocity.

• I could probably write a script within MATLAB but I am wondering if FLUENT format is structured in such a way to make my job a bit easier and allow for a generic algorithm.

Any help would be appreciated.
best wishes