CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   High Weissenberg Number Problem (

Eureka July 6, 2005 11:33

High Weissenberg Number Problem
hi all i have simulated a rotational rheometer (Mooney viscometer) with Fluent but in the output the torque is 30% different from the sperimental data, the model for the viscosity is the non-Newtonian power law the parameter obtained from capillary rheometer. The shear rate is too high at the edge of the rotor, then the Weissenberg number is too high and i think this is the problem... what you think about? Fluent give bad data when Weissenberg number is high?

sorry for my bad english.

All times are GMT -4. The time now is 15:40.