Mesh problem

franc1 · July 29, 2020, 04:18

Hi everybody.
I'm performing a thermal analysis on Fluent and i have a problem about the mesh.

In the figure i uploaded you can see that the mesh lines on the external disk are just inclined with respec to the one of the internal, which are towards to the radial direction.

How can i make also the external mesh lines radial?

Thanks in advance

AlexanderZ · July 29, 2020, 05:10

most likely, if you have same points amount on internal and external circles it will solve your issue

franc1 · July 29, 2020, 06:01

Do you mean the same number of division of external and internal circumferences?
If yes, i'm doing so, but the result is that one
if no, could you explain better?

karachun · July 29, 2020, 08:01

Chop both cylinders into four 90 deg sectors and use hard sizing based on the number of divisions.

AlexanderZ · August 2, 2020, 21:27

Quote:

Originally Posted by franc1

Do you mean the same number of division of external and internal circumferences?
If yes, i'm doing so, but the result is that one
if no, could you explain better?

yes I mean that.

you can use face meshing on face with problem.
also you can use multiZone as a method in case of 3D

July 29, 2020, 05:10		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	most likely, if you have same points amount on internal and external circles it will solve your issue __________________ best regards ****************************** press LIKE if this message was helpful

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July 29, 2020, 06:01		#3
franc1 Member Francesco Join Date: Apr 2020 Posts: 56 Rep Power: 6	Do you mean the same number of division of external and internal circumferences? If yes, i'm doing so, but the result is that one if no, could you explain better?

July 29, 2020, 08:01		#4
karachun Senior Member Join Date: Nov 2015 Posts: 244 Rep Power: 11	Chop both cylinders into four 90 deg sectors and use hard sizing based on the number of divisions.