Hi,
I am trying to get some annual wind analysis of this site using Eddy 3D. I wish to create Lawson, Davenport and Nen 8100 analysis.
However, since the house in question is on top of a hill the slicing operation becomes inaccurate. (Very high wind speeds because the probings happen far up in the sky). I tried to probe using a trimmed NURBS surface that followed the topography so that I could get a more correct result. However, the probing did not work.
In general, how do you make wind studies when you have topography? I mean if the ground slope or bend or anything the hole analysis should become very inaccurate with a flat slice plane. Yet if you make the topography all flat it feels like other inaccuracies would arrive.
In general, how do you make wind studies when you have topography? I mean if the ground slope or bend or anything the hole analysis should become very inaccurate with a flat slice plane. Yet if you make the topography all flat it feels like other inaccuracies would arrive.
I don’t have a script ready for you but I can tell you the steps necessary to arrive at a solution.
Essentially, you need to create probing points hovering roughly 2 m above your terrain mesh. You can achieve this by creating probing points from which you shoot rays (the component should be called something like Mesh Ray Intersection) in the direction of your terrain. That should give you new points that lie at the intersection between those rays and your terrain mesh. Those points you can now move up in the Unit Z direction to arrive at your probing points.
