fluctuations in turbulence frequency and kinetic energy

rskrishna87 · April 11, 2011, 07:24

Hi everyone,

I have a problem with the convergence of my model when i change the design of my structure to a a structure similar to flower. the problem is that i am getting lot of fluctuation in the turbulence kinetic energy and turbulence frequency. Can anyone tell me what is the reason.

Do i need to change any turbulence parameters?

Thanks in advance

Regards,
Krishna

ghorrocks · April 11, 2011, 18:31

http://www.cfd-online.com/Wiki/Ansys...gence_criteria

Far · June 11, 2011, 15:45

what is the range of yplus values ?

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April 11, 2011, 18:31		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 6,990 Rep Power: 59	http://www.cfd-online.com/Wiki/Ansys...gence_criteria

June 11, 2011, 15:45		#3
Far Super Moderator Sijal Ahmed Memon (turboenginner@gmail.com) Join Date: Mar 2009 Location: Islamabad Pakistan Posts: 3,083 Blog Entries: 5 Rep Power: 30	what is the range of yplus values ?