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

Testing of commercial LES codes

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

LinkBack Thread Tools Display Modes
Old   January 30, 2004, 18:13
Default Testing of commercial LES codes
Dada Dinesh
Posts: n/a

1. Whats a good way to validate results from a commercial LES code? The code uses the finite volume method and velocity/pressure data is available at every cell-center. Using this, how may one look at the energy spectrum? How can one be assured of low aliasing error? How can one be assured that the filter width (=grid size) is sufficiently small? For an unstructured grid, what does one mean exactly by "grid size"?

2. When a company invests in a commercial CFD code, what numerical experiments does it usually perform to determine the validity of the computation (I am refering to LES modeling only)?

Many Thanks for your insights,

Good times!
  Reply With Quote

Old   February 2, 2004, 05:27
Default Re: Testing of commercial LES codes
Posts: n/a

In the ressource section of CFD online

there is a document called "AGARD Test Cases for the Validation of Large-Eddy Simulations of Turbulent FLows". This document presents a set of test-cases that could be used for validating LES. Ultimately, the vendor of the commercial LES code may be able to provide you with their validation cases.

Hoppe this help. Julien
  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
Commercial codes in // jojo Main CFD Forum 5 January 23, 2007 12:58
Self-made codes vs. commercial John Van Workum Main CFD Forum 27 April 1, 2001 21:23
user friendly cfd code waqar Main CFD Forum 19 August 18, 2000 16:31
solid kinetic theory wan xiaotao Main CFD Forum 6 August 10, 1999 18:43
modifying commercial codes Richard Carroni Main CFD Forum 1 October 15, 1998 06:38

All times are GMT -4. The time now is 07:52.