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Problem with flow simulation / propeller global rotation at high RPM

Question asked by Alexandre Bourrieau on Nov 24, 2015
Latest reply on Dec 2, 2015 by Alexandre Bourrieau

Hi,

 

I am trying to simulate a litle propeler rotation in air: I wan to get the Fy force :

 

 

 

The results are OK with my experiment at slow angular frequency but when w>3000 rad/s there are some errors (see below).

 

I have a warning saying that "there is a lot of supersonics cells... Try to use manual criterium" .... Is that the problem ?

 

Can you help me to avoid this problem please ? (perhaps by adding some initials conditions ??)

 

 

I have add a criterium (F <0.1N) but simulation is very long... and still do not converge to my experiment value...

 

 

Thanks you very much for you help.

 

Regards.

 

Alexandre.

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