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-   -   Turbulent Viscosity limited to viscosity ratio problem in pneumatic conveying (https://www.cfd-online.com/Forums/fluent-multiphase/119844-turbulent-viscosity-limited-viscosity-ratio-problem-pneumatic-conveying.html)

shubham208011 June 26, 2013 04:46

Turbulent Viscosity limited to viscosity ratio problem in pneumatic conveying
 
Hi all,

I am trying to model the phenumatic conveying of flyash. For this I am using time step of t=0.005 sec.
Initially everything was fine but after few time steps i got a message that "Turbulent Viscosity limited to viscosity ratio of 1e+05 in 10 cells".
I thought this will disappear as solution become more stable but number of cells increase with every jump in time step.

Please help me out in handling this.

Regards
Shubham


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