Learning Forum

[Pedro Chaves]

Hi,

I would like to know if is possible to difine a UDF profile for inlet boundary accordingly with reference coordinate. Explaining, I have a inlet geometry which is far from global coordinate (0,0). Therefore, I want to change it for origin coordinate. So, I need to get the mid coordinate of this geometry and subtract the other coordinates from this mid coordinate. So, the mid's geometry coordinate will be (0,0). I know that I can do it manually, but I would like to do it automacally. Does someone know how to do it from UDF profile?

[Rob]

You may be able to take advantage of the local reference frame. Note, the below is from a multiphase model so your inlet panel may be a little different. 

Otherwise, you may need to work with the local coordinate with an offset. Ie x_pos = (x[0] - 1.24)  for an offset x-coordinate.