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

grid resolution?

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

LinkBack Thread Tools Display Modes
Old   February 24, 2009, 06:02
Default grid resolution?
Posts: n/a
For a given problem, how should i decide on the grid resolution? Like for eg, how should i decide on the no.of elements or cells, type of cells, grid density at high gradient regions etc etc.... Plz help me
  Reply With Quote

Old   February 24, 2009, 12:00
Default Re: grid resolution?
Posts: n/a
Decide on a decent size grid. Run your simulation and look at your variable of interest. Double your grid and see how it changes. Continue doing this until results do not change. If you have anlytical/experimental data compare simulation results to it.
  Reply With Quote

Old   February 24, 2009, 20:46
Default Re: grid resolution?
Posts: n/a

You can probably look at Verification and Validation at the following website. It might have what you require. As agg suggested, you can run on different grids and compare it with existing computations/experiments.

Also, This one :

Roache, P.J., Verification and Validation in Computational Science and Engineering, Hermosa Publishers, Albuquerque, New Mexico, 1998.

  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
Do high grid resolution capture accurate shocks? Explicit someone Main CFD Forum 1 November 10, 2008 06:48
Grid resolution - Segmentation fault George Main CFD Forum 0 September 4, 2007 17:38
Large difference in grid resolution for diff paper Ben Main CFD Forum 16 April 7, 2007 11:45
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 05:59
ratio grid resolution (near wall/center) of dispersed bubbly flow columns using LES Ridwan Setiadi Arrizar Main CFD Forum 1 January 30, 1999 18:43

All times are GMT -4. The time now is 18:00.