<div>Hi Nek's,<br></div><div><br></div><div>I have a question on how to impose inflow boundary conditions that are not analytical.</div><div>I have for instance a Blasius velocity profile computed thanks to another code. I would like to impose this given profile as my inflow condition.</div>
<div>At the moment I am using a polynomial expansion of the velocity profile in the userbc subroutine, however I would like to do things properly.</div><div><br></div><div>I can interpolate the profile from my previous code onto the wall normal GLL discretization. That would give me a .dat file containing three arrays: first one is the y-discretization, second and third ones are the velocity (u,v) at these points. Question is how could I use these data to impose my blasius profile as inflow boundary condition?</div>
<div><br></div><div>I assume it is rather straightforward, however I am not sure how and which indices should vary.</div><div><br></div><div>Best regards,</div><div>JC </div>