AnsweredAssumed Answered

Lift-to-Drag ratio too high

Question asked by Nicholas Petty on May 31, 2011
Latest reply on Jun 20, 2011 by Karim Alame

I searched past discussions concerning problems with computed L/D values, but most were about Solidworks computing too small of values for Lift.  I tested scaled models in a wind tunnel and got expected data.  However, my Flow Simulations are giving me very high L/D values (on the order of 3,5, and even 10 times too great).  The procedure I use for computing L/D is similiar to the external flow example on youtube.com: input the fluid parameters (etc.) and then insert two global goals, one for the force in the axial direction (X) and one for the force in normal direction (Y).    Is this the correct procedure?  Thanks in adavance.

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