[Davitt]

Hi everyone,

I'm using COMSOL and I'm running a CFD analysis of a wind turbine. I did a 2D model of it and ran the simulation and it worked out well.

Now I'm trying a 3D model with alot more DOFs and the solution is super slow. I actually don't mind that the time-steps take longer but the real issue is that the size of the time-steps are extremely small.

For example: a normal time interval would be around 0.15s but the time step I'm getting is around 0.00015 or less. and it gets even smaller as the fluid flow magnitude increases.

Also, I'm running the simulation on a i7-4930K, 3.4GHz hexacore processor with multithreading, 32GB of RAM, 64 bit OS...but for some reason COMSOL only uses about 3GB of RAM when running the analysis.

Does anyone using COMSOL know how to redress this situation?

Any help will be greatly appreciated..

Thank you,
Davitt