2d mesh fluent

kzf · August 26, 2017, 17:25

Hi i have question,
Does 2d mesh to fluent must have a physical volume? F.e minimal thiknes? Can i import to fluent 2d surface mesh with 0 thikness? (one layer of elements but without a physical thick) when i import to solver from ansys meshing this type of mesh i have errors,so that i cant make a 2d analysis.

I know that cfx recognize 2d mesh only with a physical volume, so in fluent is similiar problem?

LuckyTran · August 27, 2017, 00:00

No Fluent's 2D mesh is a true 2D mesh. You just need to figure out what you're doing wrong in Ansys mesher. Are you actually using the ansys mesher or ICEM? Don't confuse a surface mesh, which is generally a CAD tesselation, with a 2D mesh.

kzf · September 2, 2017, 15:22

thanks for reply,im using ansys meshing

My first problem was im not place model on correct plane. Model must be on x-y plane, before starting case on properities in workbench im not turn on 2D mode. It is important to turn on this option`s before starting case, and meshing.

Also i have question wchich behavior in ansys meshing in geometry tab is the best for CFD? Axial-symmetric?

ofcourse i know that its depend on Case, for straight pipe - axial symmetric, i think, for flat plates or square channels probably plain strain.

And for what is plane strain? In CFD f.e for analizing cross setcion where z dimension is also important?

August 26, 2017, 17:25	2d mesh fluent	#1
kzf New Member hujek Join Date: Jun 2014 Posts: 25 Rep Power: 11	Hi i have question, Does 2d mesh to fluent must have a physical volume? F.e minimal thiknes? Can i import to fluent 2d surface mesh with 0 thikness? (one layer of elements but without a physical thick) when i import to solver from ansys meshing this type of mesh i have errors,so that i cant make a 2d analysis. I know that cfx recognize 2d mesh only with a physical volume, so in fluent is similiar problem?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FLUENT - ICEM / Segmentation Violation Error (Hybrid Mesh)	Joachim	ANSYS	3	April 24, 2016 16:52
[ICEM] Fluent reading wrong mesh type	Tommorrice	ANSYS Meshing & Geometry	1	March 15, 2016 17:32
Interesting problem: Parallel Processor VOF Fluent + Dynamic Mesh + System Coupling	spaceprop	FLUENT	5	September 2, 2014 09:43
mesh missing after import in fluent	morteza08	FLUENT	0	July 23, 2010 02:22
fluent add additional zones for the mesh file	SSL	FLUENT	2	January 26, 2008 11:55

August 27, 2017, 00:00		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,675 Rep Power: 66	No Fluent's 2D mesh is a true 2D mesh. You just need to figure out what you're doing wrong in Ansys mesher. Are you actually using the ansys mesher or ICEM? Don't confuse a surface mesh, which is generally a CAD tesselation, with a 2D mesh.

September 2, 2017, 15:22		#3
kzf New Member hujek Join Date: Jun 2014 Posts: 25 Rep Power: 11	thanks for reply,im using ansys meshing My first problem was im not place model on correct plane. Model must be on x-y plane, before starting case on properities in workbench im not turn on 2D mode. It is important to turn on this option`s before starting case, and meshing. Also i have question wchich behavior in ansys meshing in geometry tab is the best for CFD? Axial-symmetric? ofcourse i know that its depend on Case, for straight pipe - axial symmetric, i think, for flat plates or square channels probably plain strain. And for what is plane strain? In CFD f.e for analizing cross setcion where z dimension is also important?