[mohammad]

Dear Glenn

Originally Posted by ghorrocks

It is not clear what you are modelling.

because I am going to simulate half model( one blade only) , I am asking about the B.C. of the plane of geometrical symmetry which passes through the hub and divides the wind turbine to two geometrically similar blades.

Originally Posted by ghorrocks

If this is modelling the blade when stationary then apply a tangential velocity equal to the velocity at your boundary.

According to your idea, if i apply this condition, still i am removing the effects( shear effects) of the removed part of model ( the other blade) which is not simulated in my simulation.

my question is that is there any way to simulate the effects of the wind shear ( friction and shear forces,....) on that plane?
Regards,