High Weissenberg Number Problem -- CFD Online Discussion Forums

July 6, 2005, 11:33	High Weissenberg Number Problem	#1
Eureka Guest Posts: n/a	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.

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