Hi Filip,
The feature refinement isn’t selection based so you can’t really define where you want or don’t want it to refine. Currently the feature refinement is not applying to the blade for some reason. If it does apply properly, you would see the edges having smaller cells than the center (refer to the figure below, feature refinement on my wing geometry). Instead it seems to be just refining your MRF only which quite perplexing. I might need to try it out myself to see what is going on.
They don’t fail, instead they get deleted by the quality controls. This post here should help in fixing that.
That is because the feature refinement is at level 9 and refining your MRF zone to insanely small cell sizes. Plus it is a 6 million node mesh. Once we get the feature refinement working properly this won’t be an issue.
What I meant was you want the incoming flow to also be well developed not just at the MRF zone. Hence why I mentioned you need to decrease the cell size out side the MRF zone which is your bounding box cell size.
Cheers.
Regards,
Barry