Help With ICEM-CFD, HEX MESH
 

i am trying to mesh a torpedo kind of geometry the problem comes when i create pre- Mesh, some negative mesh generating at the area of fin. how can i get rid of it???...

i saw a blocking workshop of submarine but its tutorial is not there. they actually over come my problem but i cant the tutorial of submarine 2 any where if some one have that plz mail me : arunkumarnd@gmail.com