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Transfer of mesh from Meshing to Fluent destroys the mesh |
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July 25, 2018, 07:38 |
Transfer of mesh from Meshing to Fluent destroys the mesh
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#1 |
Member
Join Date: Apr 2017
Posts: 53
Rep Power: 9 |
Hi CFD-Community.
I am trying to simulate the flow over a disk with spherical indentations on one side of the disk with Fluent. When I am transferring the mesh, which was created in ANSYS Meshing, to Fluent (per drag&drop in Workbench on mesh cell) the mesh gets completely destroyed. PFA two pictures. One shows the mesh in ANSYS Meshing and the other one the transferred mesh in Fluent. I didn't do anything in Fluent, I just imported the mesh over workbench and displayed the mesh on a zy_plane. Is this just a display error (it only occurs on the side with the indentations)? As Fluent also shows a very good mesh quality and only hexahedral cells and quadrilateral faces in the console when it initializes the mesh i am really not sure whether it is a real error, but as u can see one face of one cell is even missing completely. If it isn't a display error how can this error be solved? What could be the reason for the error? Does anybody had this error already? One additional information: When i am refining the mesh in Meshing the errors get less. |
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July 25, 2018, 08:13 |
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#2 |
Senior Member
Cees Haringa
Join Date: May 2013
Location: Delft
Posts: 607
Rep Power: 0 |
do you also get the error when you export the mesh from the mesher, and import it in a stand-alone FLUENT instance (so a separate launch, not via the workbench)?
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July 25, 2018, 14:09 |
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#3 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,761
Rep Power: 66 |
I don't see what is missing from the image of the mesh in Fluent. I see what looks like a mesh of a fluid volume of some plate/disc with indentations.
I don't understand at all what the picture of the mesh in Ansys meshing is. Are you displaying the surface mesh? But then this is different than displaying a slice of the mesh in the zy plane. Let's compare apples to apples here. |
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July 25, 2018, 17:45 |
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#4 | ||
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Join Date: Apr 2017
Posts: 53
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Quote:
I will try and let you know, thank you! Quote:
In both pictures you can see the fluid region around a disk with indentations. In both of the pictures we are looking at a zy_plane at x=0. In Fluent we are only looking at the plane and in Meshing we are looking at the section plane and of everything what's "behind", but the section plane in Meshing and the plane showed in Fluent is at x=0. That's why the mesh should be identical, but for some reason it is not. The mesh in Fluent shows many anomalies (even one face is missing at one element). I don't know why they appear and whether those are real anomalies in the mesh or just display errors. I hope you understand the problem now, if not please let me know. I am very thankful for every kind of help. Sorry, for my short explanation in the first post. Do you know why those anomalies appear? |
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July 25, 2018, 18:22 |
Meshing a cyclone separator
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#5 |
New Member
Choose Country Then State
Join Date: Jul 2018
Posts: 6
Rep Power: 8 |
hello everyones
i want to know what is the best way for meshing the 3D cyclone separator in ansys i'm begginer with ansys plz explain me step by step |
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July 25, 2018, 21:01 |
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#6 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,761
Rep Power: 66 |
No I don't follow. Let's compare apples to apples and not apples to oranges.
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July 26, 2018, 02:39 |
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#7 |
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July 26, 2018, 14:45 |
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#8 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,761
Rep Power: 66 |
Because you don't show the same scene in both programs.
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July 28, 2018, 10:55 |
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#9 |
Member
Join Date: Apr 2017
Posts: 53
Rep Power: 9 |
I do. Why do you think so? Both times i am showing the mesh on a zy-plane at x=0
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July 28, 2018, 11:02 |
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#10 | |
Member
Join Date: Apr 2017
Posts: 53
Rep Power: 9 |
Quote:
Also got the same error in stand-alone with mesh export. What could lead to this error? Do you have any idea? |
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