hanging nodes in fluent;

July 20, 2006, 08:20

When I try to import hanging nodes into fluent it gives the following error:

Reading Cell Tree: failed while reading section 58.

Clearing partially read grid.

Does anyone have an idea how to solve? I generate the mesh with ICEM CFD. First it was giving the error of "uncovered faces". I solved it with the grid check menu of ICEM. However, fluent didnt accept the grid.

thanks anyway Zafer

cscalo · April 9, 2013, 02:51

I have the same problem in a Fluent-like solver.. can somebody post the solution to this?

Far · April 9, 2013, 07:00

is it a 2d case ? What is your ICEM version?

asal · April 9, 2013, 08:59

Hi!

What is the ration of hanging node? Fluent ignore the 1=>2 ratio. but if the ratio is more than this, you have to merge them in ICEM, before you export to .msh

cscalo · April 9, 2013, 13:19

Thank you for your reply. In my case the refinement goes from 1 to 2. I think the problem is in my solver. However, in the case I use fluent, do I really just leave the uncovered faces unfixed (for example, without rebuilding the topology) and just export the .msh file?

I also read solutions that imply the doubling of faces and nodes at the interface, I was wondering if this is a solution that is usually used.

If these solutions don't work for me I will surrender with the polihedra interface (via "resolve refinement").

Thank you guys

Tarantino · April 9, 2013, 15:24

I have the same Problem!

asal · April 9, 2013, 15:25

Hi!

If your solver is fluent, just export the mesh and run if the ration is 1 to 2. Don't care about the uncovered faces!

July 20, 2006, 08:20	hanging nodes in fluent;	#1
Zafer Zeren Guest Posts: n/a	When I try to import hanging nodes into fluent it gives the following error: Reading Cell Tree: failed while reading section 58. Clearing partially read grid. Does anyone have an idea how to solve? I generate the mesh with ICEM CFD. First it was giving the error of "uncovered faces". I solved it with the grid check menu of ICEM. However, fluent didnt accept the grid. thanks anyway Zafer

April 9, 2013, 02:51	I have the same problem..	#2
cscalo New Member Carlo Join Date: Apr 2013 Posts: 10 Rep Power: 13	I have the same problem in a Fluent-like solver.. can somebody post the solution to this?

April 9, 2013, 13:19	hanging nodes	#5
cscalo New Member Carlo Join Date: Apr 2013 Posts: 10 Rep Power: 13	Thank you for your reply. In my case the refinement goes from 1 to 2. I think the problem is in my solver. However, in the case I use fluent, do I really just leave the uncovered faces unfixed (for example, without rebuilding the topology) and just export the .msh file? I also read solutions that imply the doubling of faces and nodes at the interface, I was wondering if this is a solution that is usually used. If these solutions don't work for me I will surrender with the polihedra interface (via "resolve refinement"). Thank you guys

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April 9, 2013, 07:00		#3
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	is it a 2d case ? What is your ICEM version?

April 9, 2013, 08:59		#4
asal Senior Member Astio Lamar Join Date: May 2012 Location: Pipe Posts: 186 Rep Power: 14	Hi! What is the ration of hanging node? Fluent ignore the 1=>2 ratio. but if the ratio is more than this, you have to merge them in ICEM, before you export to .msh

April 9, 2013, 15:24		#6
Tarantino Member Tarantino Join Date: Feb 2013 Posts: 46 Rep Power: 13	I have the same Problem!

April 9, 2013, 15:25		#7
asal Senior Member Astio Lamar Join Date: May 2012 Location: Pipe Posts: 186 Rep Power: 14	Hi! If your solver is fluent, just export the mesh and run if the ration is 1 to 2. Don't care about the uncovered faces!