Problem initializing Reynolds stress turbulence
 

Hi,

I´m trying to simulate a hydrociclone using Multi-phase and Reynolds Stress Turbulence models, but before the end of the first iteration this error message appears: "Attempt to access unallocated DensityGrad storage in cells in Hidrociclone"... What does it mean? Is this model (RST) unappropriate for this job !? Is there some tip for initialize a model like that !?

Thanks in advance