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

Designmodeler 12 surface from coordinates

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 27, 2011, 15:57
Default Designmodeler 12 surface from coordinates
  #1
woo
New Member
 
anon
Join Date: Jan 2011
Posts: 7
Rep Power: 6
woo is on a distinguished road
Hi!

I'm looking to simulate turbulent flow over topography from a coordinate file (XYZ [m]). I've found how to import coordinate data into Ansys Designmodeler in Workbench 12. The data appears as displayed in the attached screen capture.

I'm curious: What is the most efficient method to generate a surface from this cloud of points? This seems like it would be a fairly common task anyone have a good SOP for this?

It seems that it's possible to create 3D curves, then possibly "loft" a surface using the 3D curves as profiles? Any luck with this approach?

Thanks for your time, hopefully, this thread will provide concise information for others looking generate surfaces from point clouds. As I searched and didn't find a definitive answer.

Best,
-Travis
Attached Images
File Type: jpg point_screen_capture.jpg (91.7 KB, 78 views)
woo is offline   Reply With Quote

Old   June 20, 2011, 13:52
Default
  #2
New Member
 
Fredy Cabrales
Join Date: Jan 2010
Posts: 15
Rep Power: 7
fcabrales is on a distinguished road
Quote:
Originally Posted by woo View Post
Hi!

I'm looking to simulate turbulent flow over topography from a coordinate file (XYZ [m]). I've found how to import coordinate data into Ansys Designmodeler in Workbench 12. The data appears as displayed in the attached screen capture.

I'm curious: What is the most efficient method to generate a surface from this cloud of points? This seems like it would be a fairly common task anyone have a good SOP for this?

It seems that it's possible to create 3D curves, then possibly "loft" a surface using the 3D curves as profiles? Any luck with this approach?

Thanks for your time, hopefully, this thread will provide concise information for others looking generate surfaces from point clouds. As I searched and didn't find a definitive answer.

Best,
-Travis
Hi woo!

I am on the same situation as you are. I have to create a "loft" surface from several splines to generate a blade. I imported all 3D lines from a file but it seems that there is not possible to generate the loft surface using the curves, considering that they are not sketches.

What did you do to solve this problem? were you manage to create the loft surface?


I really appreciate your help and any reply to this message.
fcabrales is offline   Reply With Quote

Old   June 20, 2011, 14:06
Default
  #3
woo
New Member
 
anon
Join Date: Jan 2011
Posts: 7
Rep Power: 6
woo is on a distinguished road
Hi,

I contacted ANSYS through our support contract. They suggested a work-around using CAD software to create an STL file. There's a few options out there IE: Paraform. This didn't work well for me.

Instead I opted to use GAMBIT. Gambit has a journal language that allows for you to create splines and surfaces from point clouds or gridded data. The syntax for the commands to create points, lines from points and faces from lines... and so on is very intuitive.

I used this online reference to create scripts in Matlab to write journal files for Gambit to create mesh files for Fluent based on XYZ data.

http://my.fit.edu/itresources/manual...uide/mgtoc.htm

Eventually, I realized that my modeling goals weren't easily achievable using CFD for various reasons and dropped that portion of the project.

Best wishes and good luck with your goals.

-Travis
woo 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
Problem with Gmsh nishant_hull Open Source Meshers: Gmsh, Netgen, CGNS, ... 23 August 5, 2015 02:09
Error : Self intersecting surface mesh, computing intersections & Error : Impossible velan Open Source Meshers: Gmsh, Netgen, CGNS, ... 1 July 14, 2015 05:54
boundaries with gmshToFoam‏ ouafa Open Source Meshers: Gmsh, Netgen, CGNS, ... 7 May 21, 2010 12:43
coordinates in designmodeler fkonias CFX 7 June 9, 2008 04:38
CFX4.3 -build analysis form Chie Min CFX 5 July 12, 2001 23:19


All times are GMT -4. The time now is 17:48.