|April 17, 2010, 10:40||
Turbulent viscosity message with rotating blade simulation
Join Date: Jul 2009
Posts: 456Rep Power: 14
I'm trying to simulate a rotating blade (hovering helicopter with two rotors) with the density based solver, standard k-epsilon model and air ideal gas (sutherland viscosity). But no matter what I try I'm always getting the message "turbulent viscosity limited to viscosity ratio of 1.000000e+005 in __ cells" after each iteration. Every attempt I've made at simulating this flowfield shows divergent residuals (except the k and epsilon residuals).
The domain is a half cylinder with the periodic boundary condition on the plane that is through the centre of the cylinder. By simulating half the cylinder with a single rotor in it saves mesh size.
Can anyone suggest what to do to get this working? I've worked through tutorials 8 & 9, but like all most tutorials failure always occurs for any slightly different non-tutorial simulation.
|Thread||Thread Starter||Forum||Replies||Last Post|
|ROTATING TURBINE BLADE SIMULATION||Anant||FLUENT||2||March 31, 2011 10:57|
|turbulent viscosity in k-e model||orlik||Fluent UDF and Scheme Programming||0||March 31, 2010 11:48|
|User-defined turbulent viscosity - kinematic or dynamic?||tstorm||FLUENT||0||August 13, 2009 16:49|
|setting value of turbulent intensity and turbulent viscosity ratio in wind tunnel||nuimlabib||Main CFD Forum||0||August 4, 2009 00:05|
|effective? turbulent? laminar? viscosity||MIssNancy||FLUENT||3||December 3, 2002 00:53|