|April 17, 2010, 10:40||
Turbulent viscosity message with rotating blade simulation
Join Date: Jul 2009
Location: Portsmouth, England
Posts: 506Rep Power: 15
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.
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