Time constant in Bingham viscosity model

Altair Forum User

Hi,

 

I am trying to model chocolate syrup and I am using the Bingham model for that. I was wondering what the equations behind this model are, as by looking at the variables given by AcuConsole (reference viscosity, yield stress, stress growth exponent, time constant, power index and infinite shear viscosity) it seems to me that it makes use of the Herschel-Bulkley-Papanastasiou model. If that is the case, what does time constant mean? Is it multiplied by the stress growth exponent thus yielding parameter m (has dimensions of time) in the equation?

 

I might also be completely wrong here so any help would be appreciated! Thanks in advance!

acupro

The best place to start is with the Command Reference Manual under Viscosity Model.  This has the equation and explanation.  You can get that from the Help menu.