[Attique]

Hi!

This is a quarter portion of single tube which is made in two parts in DM for sake of “definition of two separate walls” (according to my understanding) - upper adiabatic and lower heated in my case. I grouped both parts at the end of modeling. (figure DM) “Named selections” were made there as well. SYM2 contains one flat face of both parts on same side. Same for SYM1. (figure SYM2)

After heading towards ICEM, instead of having a whole geometry from DM as a “single part” (which i was expecting and it could have made easy for me to define the boundary conditions in that case) it was divided in 3 parts (figure TREE & fluid_1#fluid_2)

I need to know:

Regarding whole geometry
1) Is there need to create parts for "all curves" and "all points" as well?

Regarding FLUID_1#FLUID_2
1) Is it okay to leave FLUID_1#FLUID_2 part while assigning the boundary conditions in ICEM? Or should i use “interior” BC for it? Or any other step needed?
2) If deleting this part, will it be problematic for creating mesh in ICEM?

I’m considering WATER flowing through this tube which is being heated in lower section only.

If I could make it with your help, I assure you that I’ll make a whole tutorial from modeling to meshing for those people (beginner level like me) with such problem involving two walls, which will make it easy for them to understand these basics regarding DM and ICEM.

Regards,
AJ

P.S. I've a little know-how of Y-blocking for this geometry. I'll add it in that tutorial as well. It will be my pleasure.

[Attique]

I've found a nice answer (thanks to bluebase) to deal such a problem. check out "Merged Tetra-Hexa Mesh in a Hybrid Tube" of this given ANSYS official tutorial.

http://148.204.81.206/Ansys/150/ANSY...l%20Manual.pdf

And for basic y-blocking for a quarter circle geometry you can go for:
http://www.cfd-online.com/Forums/ans...tml#post495630

Regads,
AJ