Learning Forum

[Hazem]

Dear Respected memebers,

I'm working on a multizone mesh for a 3 bladed wind turbine rotor on ICEM CFD, by doing 2D surface blocking then converting the block to 3D and creating an Ogrid.

This essentially requires creating topology first (which was tricky in the beginning to get all the curves red).

The 2D blocking went fine, then on converting to 3D the Ogrid failed!

This is possibly because a surface was meshing on the face of the airfoil at the blade tip (I've included pictures).

I started all over, this time trying to create surface using ICEM Geometry tools (surface from 2-4 curves). which resulted in 2 blue curves at the tip, trying to vary the tolerance results in other blue and yellow curves elsewhere!

I wonder if I can get any clues on how to create this surface and build topology.

[Rob]

The issue may be that the block edges overlap at the end due to the shape of the blade, this will cause skew cells even if you manage to get the blocking working. Try thickening the blade to see if that helps.nMoving to pre-proc too. n

[Keyur Kanade]

As ANSYS Staff, we can not download attachments. Please upload images using upload image functionality. nWhy do you want to go for hex mesh using blocking? nPlease check if you can use tet mesh with inflation. nnnPlease see help manual for more details about these commands. nRegards,nKeyurnGuidelines for Posting on Ansys Learning ForumnHow to access ANSYS help linksnn