4 Replies Latest reply on Dec 2, 2015 7:59 AM by Alexandre Bourrieau

    Problem with flow simulation / propeller global rotation at high RPM

    Alexandre Bourrieau



      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.