<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hi Neks,</div><div><br data-mce-bogus="1"></div><div>I was doing pitching and plunging simulation of airfoil. I could successfully rotate the foil with smoothing function. Thank to you all who helped me. Now as a part of validation, I have to impose a forced motion. For that, I found a good paper where a complex exponential function( e^ iwt ) as the velocity of the foil. My question is, is it possible to give a complex number to give as an input to the mesh velocity ? Sorry if its a foolish question.</div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Thanks</div><div><br data-mce-bogus="1"></div><div>Sijo</div></div></body></html>