[singh_is_king]

Hi,

I am trying to create a mesh for a conjugate heat transfer study on a high pressure rotor blade. The geometry is 3D and is quite complex. I have managed to mesh all the fluid parts structured and now I am on to the solid domain. Due to the complexity, I am now trying to finish it using tetrahedrons.

Pointwise has a T-Rex function which is very useful, (combines 5 cells to make a hexahedron) but I am having difficulty in trying to get it to work. It seems to stop a lot of cells from growing and therefore leaving many high angled pyramid cells (more than 10% over 175 degrees, this excludes all pyramid cells generated). I am willing to accept cells up to 175 degrees, but 179 degrees is certainly not right. My belief is that it is caused by the high aspect ratio structured cells within the boundary layer. However, I can't compromise on this due to the low y+ value required for the study.

Does anybody have an experience with using T-Rex on Pointwise and willing to help me to rectify this issue. Ideally, one maximum full layer would suffice, but I am not getting any after many painstaking iterations.

note. I am using a maximum angle of 175 under skew criteria as well as a collision buffer of 2.