CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

grid generation help

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

LinkBack Thread Tools Display Modes
Old   November 12, 1999, 18:22
Default grid generation help
zhe zhang
Posts: n/a
hello, everyone: My research work is to generate the grid used for computation for a flow over the propellor. But I never did the work about the grid generation although I complete some computational work before. I don't know where can I start and what paper should I read at first. Can people who has the experience on the grid generation give me any suggestions? Thank you very much.
  Reply With Quote

Old   November 12, 1999, 19:34
Default Re: grid generation help
Joern Beilke
Posts: n/a
Have a look at

GridPro is able to create high quality hex-meshes and works very good for propeller-like cases.

Watching the pictures might give you a good impression for starting )
  Reply With Quote

Old   November 12, 1999, 23:48
Default Re: grid generation help
John Chien
Posts: n/a
(1). You can visit the resources section, there are many websites on grid generation. (2). First of all, you need to take a look at a real propeller. There are propellers for aircrafts, for ships, for small boat,..., you must know what you are going to work on. (3). Once you have passed this step, you can use a cylindrical coordinates fixed to the propeller, and make many constant radius cut through the blade to give you the cross-sectional shape. That will be the propeller blade geometry shape definition. This blade surface and mesh will be rotating with the rotating system. (4). On any cylindrical surface, it is basically 2-D on curved surface. You can define the upstream inlet station, and the downstream exit station. In between, there is your blade section. Depending on the number of blades, you can define the extent of your periodic boundary. (5). It is easier to work on this problem with a 2-D problem, that is the flow over an airfoil. Once you have learned how to deal with the 2-D problem and mesh generation, you can easily extend it in the third dimension (the radial direction). (6). The mesh for 2-D problem can be H-grid, C-grid, O-grid, unstructured grid, and it can be extended to 3-D. (7). It is easier to review the AIAA Journals, and study the various meshes used for airfoil calculation. I think you also would like to know how to define the airfoil section.
  Reply With Quote


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
need help for generation grid aya FLUENT 11 March 4, 2008 15:46
Help Re. Grid Generation Patel Amit R. FLUENT 1 February 28, 2003 22:27
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 05:59
Latest News in Mesh Generation Robert Schneiders Main CFD Forum 1 February 18, 2000 01:48
Latest news in mesh generation Robert Schneiders Main CFD Forum 0 March 2, 1999 05:07

All times are GMT -4. The time now is 17:13.