CFD - Error with k-epsilon turbulence model

[Anonymous]

I got the following error when using the "k-epsilon" turbulence model:

"Negative Jacob encountered, DET= -2.46e-6 at Part 1 Element=4493"

what does it mean? How can I solve the error?

Thanks

[Anonymous]

Hi,

Im having the same 'negative jacob' error with a fluid flow model which i am currently trying to solve.  Did you find what is causing it or a work around?

Any help is appreciated

Cheers

[Joey.X]

Hi,

'Negative jacob' errorgenerally comes from bad mesh in some elements such concaved or negative volume due to unacceptable node position. Make sure the model has boundary layer mesh enabled on all solid walls, and also disable boundary layer mesh from inlet, outlet surfaces, and the surfaces between two fluid parts.