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

Help needed with Cornell's Gambit airfoil tutorial

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 3, 2009, 03:59
Default Help needed with Cornell's Gambit airfoil tutorial
  #1
New Member
 
Join Date: Apr 2009
Posts: 26
Rep Power: 17
Arti is on a distinguished road
Ok im new to Gambit or any other CFD software. But im required to use this fro my project. Hope to get some help here.

I tried a couple of times creating the mesh using the airfoil SG6042 .with the tutorial from Cornell University. But i keep running into a problem with the point G which is created at the tail of the airfoil.

The problem is that i cannot subtract the airfoil from the semicircle portion. It gives the error : "ACIS error 8029:inconsistent edge face relationships". If i were to shift it a little i could subtract it but meshing takes a long time and i can only do it using PAVE method not MAP.

The tutorial is found here
http://courses.cit.cornell.edu/fluent/airfoil/step1.htm

Is there a way around the vertex point G. I tried using the same airfoil given it has such problems too. Somtimes vetices gets deleted. Thank you.

Last edited by Arti; April 3, 2009 at 04:17.
Arti is offline   Reply With Quote

Old   April 3, 2009, 15:09
Default
  #2
Super Moderator
 
-mAx-'s Avatar
 
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41
-mAx- will become famous soon enough
I assume there is a problem with the fact that G belongs to the airfoil and also to the semi circle
Try this:
Substract the airfoil from the whole big domain (ABCDEFA).
Then once it is substrated (ie the airfoil is a hole --> shaded mode), you have to split the face along the edge (AE), G is aligned on this edge.
And then the same wit (GC).
It should be ok
-mAx- is offline   Reply With Quote

Old   April 4, 2009, 13:04
Default
  #3
New Member
 
Join Date: Apr 2009
Posts: 26
Rep Power: 17
Arti is on a distinguished road
oh ok thanks alot will try it out.
Arti is offline   Reply With Quote

Old   May 30, 2009, 04:40
Default 2Dairfoil balde in gambit
  #4
Member
 
sivaramakrishnaiah
Join Date: Mar 2009
Location: india,pondicherry
Posts: 76
Rep Power: 17
sivarama1 is on a distinguished road
Send a message via MSN to sivarama1 Send a message via Yahoo to sivarama1 Send a message via Skype™ to sivarama1
Hi all,
I am having trouble meshing 2D boundary layers in Gambit. The geometry I am working with is the wind airfoil. I have flow inlet and outlet, and inlet/outlet is planar and roughly rectangular. The entire geometry is a sort of rectangular shaped outer airfoil. I can create but when I use the "View 2D Boundary Layer" tool in Gambit, my boundary layers will not even appear in the selection list and cannot be added by shift-left-clicking on them. Does anyone know why they cannot be added to the list?
__________________
sivaramakrihnaiah
sivarama1 is offline   Reply With Quote

Reply


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
Mesh geometry over airfoil with Gambit laith FLUENT 5 March 9, 2018 02:56
Airfoil Meshing Scheme in Gambit J. Weiler FLUENT 6 October 2, 2011 16:41
Help needed with Cornell's Gambit airfoil tutorial AW FLUENT 6 February 26, 2010 23:42
Help needed for airfoil mesh creation using GAMBIT Alagesanj FLUENT 2 October 20, 2008 12:39
Gambit tutorial vinod FLUENT 1 January 5, 2005 12:44


All times are GMT -4. The time now is 15:36.