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

[Gmsh] Mesh around a sail with zero thickness

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 25, 2008, 14:55
Default Mesh around a sail with zero thickness
  #1
New Member
 
Ole Lindberg
Join Date: Mar 2009
Posts: 1
Rep Power: 0
ole_lindberg is on a distinguished road
I am trying to simulate the flow around at sail.
I think of a sail as a surface with zero thickness.
In Gmsh I tried to make a 2D mesh inside a rectangular "windtunnel" with the sail placed inside the rectangle, but I haven't succeded in generating a mesh on both sides of the sail. In Gmsh the 2D sail is a Line made by a collection of Points. Is it possible to generate tetrahedron/prism/hexahedron meshes around a sail with zero thickness in Gmsh.
Right now I have given the sail a thickness of 1 mm, then i can remove the "inside" of the sail from the mesh like a hole in the domain. This is quite trivial.
If I would only work in 2D I could use another 2D mesh generator like Triangle or DistMesh, but the thing is that I would like to make a 3D simulation of the sail, therefore I need a good 3D mesh generator. Specifically one that can make make a mesh on both sides of an surface with zero thickness. Any recommendations?
ole_lindberg is offline   Reply With Quote

Old   January 6, 2010, 19:08
Default
  #2
Senior Member
 
Eric Nutsch
Join Date: Sep 2009
Location: Eugene, Oregon USA
Posts: 113
Rep Power: 16
ericnutsch is on a distinguished road
Send a message via Skype™ to ericnutsch
I think you need to split your mesh in half at the sail. Mesh one half as one volume then mesh the other.

Not for certain this will work, but its worth a shot...
ericnutsch is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
sliding mesh problem in CFX Saima CFX 46 September 11, 2021 07:38
[snappyHexMesh] Disturbance in the mesh after the addition of layers Dorian1504 OpenFOAM Meshing & Mesh Conversion 0 June 13, 2017 02:27
3D Hybrid Mesh Errors DarrenC ANSYS Meshing & Geometry 11 August 5, 2013 06:42
[Gmsh] 2D Mesh Generation Tutorial for GMSH aeroslacker OpenFOAM Meshing & Mesh Conversion 12 January 19, 2012 03:52
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 11:55


All times are GMT -4. The time now is 21:12.