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

driven cavity (ghia)

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

Like Tree1Likes
  • 1 Post By Jonas Holdeman

LinkBack Thread Tools Search this Thread Display Modes
Old   April 14, 2011, 13:08
Default driven cavity (ghia)
Senior Member
Join Date: Apr 2009
Posts: 106
Rep Power: 14
HaKu is on a distinguished road

are there any experimental results for driven cavity flow???

secondly Ghia also did numerical study and its been used again and agian for the vlidation?? i am really confused that why?? wht is the thing in Ghia data tht makes it a benchmark ?? and how cna we actually compare the numerical results to another numerical results and can say tht the acheme tht we developed is performing fine??

HaKu is offline   Reply With Quote

Old   April 17, 2011, 08:36
Senior Member
Jonas T. Holdeman, Jr.
Join Date: Mar 2009
Location: Knoxville, Tennessee
Posts: 126
Rep Power: 15
Jonas Holdeman is on a distinguished road
I don't really know the answer to your question, and can only speak for myself. The Ghia computation was really good for the time and method. There are a number of published results with other methods that are in better agreement among themselves than with Ghia, but the difference is small, in the last Ghia digit. The 2D computational problem is an artificial one. The usual boundary condition at the lid corners is difficult handle experimentally, and the experimental arrangement is really 3D. The Ghia result is readily available and if your new code agrees with Ghia, then it is probably performing correctly, which is what you want a benchmark to do for you.
otd likes this.
Jonas Holdeman is offline   Reply With Quote

Old   April 18, 2011, 12:28
New Member
Join Date: Apr 2011
Posts: 9
Rep Power: 12
Thomas_L is on a distinguished road
I'm agree with Jonas Holdeman. The 2D case of the Lid driven cavity is only a artificial representation. Nonetheless it's usefull to learn the physics and it's also a benchmark due to the many publications as step before to continue on others numerical simulation.(see Paper of Erturk, 2009, Discussions on driven cavity flow)
So Ghia computation is really good if you want to check your 2D code. There's also the paper of Botella and Peyret (1998) using spectral method.

What are you looking for in the lid driven cavity? Do you just want check your code?
If yes:
-Make sure you re using the same formulation (Primitive variable, Vorticity-Stream function..)
-The same numerical method (FV,EF,DF, Spectral..)
-Mesh, time step
- How you deal the singularity in the corners.

For an experiment of the 3D lid driven cavity, you can read the paper of Feldmann and Al (2010), not as been publish but on google scholar.

Thomas_L is offline   Reply With Quote


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
initial conditions of Ghia (driven cavity) HaKu Main CFD Forum 3 April 13, 2011 15:25
is there any parallel code for the famous Lid Driven Cavity flow? gholamghar Main CFD Forum 0 August 1, 2010 01:55
Ghia driven cavity problem- not getting secondary vortices rishabh_g FLUENT 0 September 23, 2009 02:04
lid driven cavity by ghia jj Main CFD Forum 4 August 8, 2006 07:57
The 2-D Driven Cavity Problem debiao Main CFD Forum 2 January 11, 2006 13:14

All times are GMT -4. The time now is 03:08.