CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > ANSYS Meshing & Geometry

[ANSYS Meshing] Mesh around a rotating cylinder

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   March 10, 2012, 14:58
Question Mesh around a rotating cylinder
  #1
New Member
 
Leandro
Join Date: Mar 2012
Posts: 8
Rep Power: 5
leomec88 is on a distinguished road
Hello guys!!
I am a new CFX user and I have been working in a air flow over a rotating cylinder simulation. I know that in this type of simulation, the boundary layier is really relevant. So, because of this, I have been workin really hard trying to improve my mesh around the cylinder. I found one interesting paper about this type of simulation that shows the attached picture. The picture shows the mesh I'm trying to do. But, i have lots of difficult to implement that. I would like to know if somebody can help me to do that mesh ( not exactly that ond..but close). Can somebody tell me the steps I should follow to create such mesh? I am using the workbench and I will simulate in CFX. I have created a thin plate with a small hole (cylinder) in the middle. So now, how should I proceed?

Thanks!!
Attached Images
File Type: jpg imagem.JPG (27.7 KB, 104 views)
leomec88 is offline   Reply With Quote

Old   March 11, 2012, 01:17
Default
  #2
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
Blog Entries: 6
Rep Power: 38
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
I have no idea about the AM, but can be easily done in ICEM. Meshing in Gambit for analysis of flow past cylinders tin and blocking files are also attached with post for cylinder of 1 dia.
Far is offline   Reply With Quote

Old   March 11, 2012, 04:10
Default
  #3
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
Blog Entries: 6
Rep Power: 38
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
This might be required method you are looking for in AM and DM https://confluence.cornell.edu/displ...+Specification
Far is offline   Reply With Quote

Old   March 11, 2012, 08:37
Default
  #4
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,662
Blog Entries: 1
Rep Power: 35
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Right, if you want a mesh with this sort of topology, ICEM CFD is easier. But you could still do it in ANSYS Meshing... Just subdivide the plate into each of those regions and map each face... But I don't recomend that...

If I were doing this in AMP for CFX, I would just use the sweep mesher (or the multizone mesher). It will use a more unstructured mesh on the surface and sweep it thru the thickness of the plate... That type of mesh can actually be more efficient in some cases because the unstructured mesh can transition to larger sizes...
__________________
-----------------------------------------
Please help guide development at ANSYS by filling in these surveys

Public ANSYS ICEM CFD Users Survey

This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)...

CFD Online Users Survey
PSYMN is offline   Reply With Quote

Old   March 11, 2012, 15:58
Default
  #5
New Member
 
Leandro
Join Date: Mar 2012
Posts: 8
Rep Power: 5
leomec88 is on a distinguished road
Thanks for the answer guys! I'm going to try the advices!
leomec88 is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rotating cylinder raul FLUENT 3 February 1, 2015 06:48
3-d mesh gambit (cylinder within a cylinder) Jason ANSYS Meshing & Geometry 19 June 26, 2013 10:00
No layers in a small gap bobburnquist OpenFOAM Native Meshers: snappyHexMesh and Others 2 November 25, 2012 09:54
external flow with snappyHexMesh chelvistero OpenFOAM 11 January 15, 2010 20:43
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 18:10


All times are GMT -4. The time now is 09:28.