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

[ANSYS Meshing] How can I achieve the exact kind of meshing

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 28, 2012, 12:22
Default How can I achieve the exact kind of meshing
  #1
New Member
 
Join Date: Jun 2012
Posts: 3
Rep Power: 13
mailpulak is on a distinguished road
Hi guys,

I want to know how can I achieve a similar kind of meshing (webbed) as in these pictures. It is a horizontal column of water, 10x10 meter in cross-section and 80 meters long with turbine inside. I tried Body of Influence but am not getting a similar result with Hex Dominant (Quad) method.

Any help will be appreciated.
Attached Images
File Type: jpg front1.JPG (69.3 KB, 69 views)
File Type: jpg rear.jpg (65.8 KB, 66 views)
mailpulak is offline   Reply With Quote

Old   August 28, 2012, 14:44
Default
  #2
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Tokyo, Japan
Posts: 1,385
Blog Entries: 23
Rep Power: 28
diamondx will become famous soon enough
not an ansys meshing expert, i think you need to try "surface mapped"
__________________
Regards,
New to ICEM CFD, try this document --> https://goo.gl/KAOIwm
Ali
diamondx is offline   Reply With Quote

Old   August 28, 2012, 18:24
Default
  #3
New Member
 
Join Date: Jun 2012
Posts: 3
Rep Power: 13
mailpulak is on a distinguished road
Thanks, I'll try that.
mailpulak is offline   Reply With Quote

Old   August 30, 2012, 19:00
Default Not working..
  #4
New Member
 
Join Date: Jun 2012
Posts: 3
Rep Power: 13
mailpulak is on a distinguished road
The mapped face meshing is not working.. If there is a way/setting to achieve can anyone let me know..

Thanks.
mailpulak is offline   Reply With Quote

Old   August 31, 2012, 15:57
Default
  #5
New Member
 
Jared Brewer
Join Date: Dec 2009
Location: New Orleans, La
Posts: 7
Rep Power: 16
Jinglz is on a distinguished road
Insert "sizing"> select the 4 edges > num of divisions

Put the same number for all the sides for now...say 25

Insert "mapped face" mesh on that face

Insert "Method" > "Sweep" >put 100 divisions for now

That should get you close. For these steps the order matters.
Jinglz is offline   Reply With Quote

Old   September 1, 2012, 10:26
Default
  #6
New Member
 
samiullah
Join Date: Aug 2012
Posts: 21
Rep Power: 13
samidabest is on a distinguished road
i draw the 2d model in the ansys when i did meshing on it, it show 3d figure in meshing but in geometry it show 2d.... so what i do...... help me
samidabest is offline   Reply With Quote

Old   September 1, 2012, 10:46
Default
  #7
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Tokyo, Japan
Posts: 1,385
Blog Entries: 23
Rep Power: 28
diamondx will become famous soon enough
when meshing a 2d geometry. sketch has to be done in XY plane. Very important. when you close the geometry window, in the workbench look a the right panel and select 2D instead of 3d in geometry properties. have you done that ?
__________________
Regards,
New to ICEM CFD, try this document --> https://goo.gl/KAOIwm
Ali
diamondx is offline   Reply With Quote

Old   September 1, 2012, 14:01
Default
  #8
New Member
 
samiullah
Join Date: Aug 2012
Posts: 21
Rep Power: 13
samidabest is on a distinguished road
yes i done this already but problem is there
samidabest is offline   Reply With Quote

Old   September 2, 2012, 11:53
Default
  #9
Senior Member
 
Stuart Buckingham
Join Date: May 2010
Location: United Kingdom
Posts: 267
Rep Power: 25
stuart23 will become famous soon enoughstuart23 will become famous soon enough
This looks like it is a structured O-Grid with a mapped/swept quad block at the center. This s a very difficult mesh to replicate without hours of training and experimenting. If you MUST duplicate this mesh, you will need to learn how to use a structured grid generator like ICEM.

I am not confident that you can duplicate this with Ansys Mesher, I will be pleasently suprised if you or someone else manages to do it though.

Stu
stuart23 is offline   Reply With Quote

Old   September 4, 2012, 05:53
Default
  #10
Super Moderator
 
flotus1's Avatar
 
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,399
Rep Power: 46
flotus1 has a spectacular aura aboutflotus1 has a spectacular aura about
This can be easily done in ansys meshing by slicing the geometry into the appropriate parts.
flotus1 is offline   Reply With Quote

Old   September 4, 2012, 08:59
Default
  #11
New Member
 
Jared Brewer
Join Date: Dec 2009
Location: New Orleans, La
Posts: 7
Rep Power: 16
Jinglz is on a distinguished road
If you slice the geometry before immediately before and after the object in the flow field, you should be able to take the 2D mesh that you generated with the "mapped mesh" and extrude it through the domains using the sweep function. After that you can use the ansys, automeshing features to develop an conformal, yet unstructured mesh around the object. Then insert "inflation" to those faces to resolve the boundary layer. If you choose the correct sizing parameters (layer thickness based on some derivative of a y+), that should produce a mesh of acceptable quality regardless of the application. The only critical thing to do here is make sure the two domains are meshed first so that the unstructured mesh will conform to the common boundary nodes.
Jinglz is offline   Reply With Quote

Old   September 9, 2012, 07:34
Default geometry (Dimensions)
  #12
New Member
 
Sami
Join Date: Sep 2012
Posts: 15
Rep Power: 13
abdul Sami is on a distinguished road
Hi every One!

I need dimensions of convergent divergent nozzle of any industry plzif some one knows send me link plzz help
abdul Sami is offline   Reply With Quote

Reply

Tags
ansys, meshing 3d


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[ICEM] Hexa meshing of impeller and diffuser assembly Nitin Dewangan ANSYS Meshing & Geometry 14 September 13, 2016 09:41
2d meshing in ansys meshing syler3321 ANSYS Meshing & Geometry 10 November 1, 2012 20:42
[ANSYS Meshing] Migrating from GAMBIT to ANSYS Meshing David-CFD ANSYS Meshing & Geometry 1 April 1, 2011 05:22
[ANSYS Meshing] Ansys meshing with extended meshing jsm ANSYS Meshing & Geometry 6 January 10, 2011 12:09
[GAMBIT] Desperate student needs help meshing 3D GAMBIT model - please help! lau06165 ANSYS Meshing & Geometry 1 March 22, 2010 01:09


All times are GMT -4. The time now is 10:13.