[jackr84]

I have determinated my problem. I post a figure in that i show the problem. How can i eliminate this surface. For this motive i don't create the mesh.

[Rombzh]

You seem to have overlapping surfaces, in that case I think you need to fix the CAD first, as Hexpress won't be helpful for this matter.

[jackr84]

I resolved the problem. Now I do the mesh of two volumes, but for the third volume when I try to do the optimization phase the process failed.I try to modificy the optimization level but the optimization don't finish.

[Rombzh]

Check in the log file what is happening. It should point an issue with a specific edge or face.

[jackr84]

There are concave cells and negative cells. How can i reduce them?

[Rombzh]

check where exactly this is happening and create local refinements maybe.

[jackr84]

I imported the mesh in Numeca,but when i set the boundary condition of inlet there is a problem:

Erros:Can't read "ith_bc(phys_var;min_value;StaticPressureExtrapola ted,24,1,6)":no such variable"

[swaroop006]

hi "jackr84".......first of all check the boundary conditions-in HEXPRESS refinement is done on only on those surfaces which are tagged as WALL. Check the things out like geometry is clean & valid....if not try to clean in 3matic(no need of it, as you are saying that u were having x_t file; in hexpress itself u can clean), define proper taget cell size-TCS (TCS=initial_size/2^(refinement_level)), & hexpress has an built in algorithm which has success rate of 99.98% removing concave cells through default optimization step.

[FSoares87]

Hi,

I'm new with hexpress. Are there any tutorials?

Thanks in advance