Has anyone ever used Herschel Bulkley panel for viscosity. I have had a problem to select that model under material panel. When i clicked on the drop down list of viscosity model, that model was not available in fluent 6.2. I was wondering if somebody could help me how to select that particular model and put it into as viscosity equation. Thank you in advance

The Hershel Bulkey model is not available if you have already selected a turbulent model.

If you want to use a turbulent model, you need to select before the hershel model and then through the command line to activate the k-e model.

HV