[Kieran]

Hi there,

I'm meshing a turbine blade (as shown in the picture) using T-Rex, to solve using OpenFOAM. Currently my solutions diverge, with issues seeming to arise from "spots" on both the hub region and nearish the tip.

I'm using a structured surface mesh, and have mostly been using the default T-Rex parameters. I am generally uisng about 5 full layers and 20 max layers, the results of which I've also attached. I've read up on what most of the other parameters do but I'm not sure, in the conext of my case, how I could change them to improve my mesh quality, I've tried a bit with little luck. Im using DeltaS of 1.2 for a y+ of ~60.

Im also quite concious that the surface mesh at the hub (pictured) is skewed, although though I've run a few cases where the hub seems well behaved so I'm not currently overly concerned about it.

Any insights or suggestions would be really helpful.

Thanks,

Kieran