CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Wiki > Validation and test cases

Validation and test cases

From CFD-Wiki

(Difference between revisions)
Jump to: navigation, search
(3-D test cases)
Line 2: Line 2:
== Introduction ==
== Introduction ==
-
A common issue that arises in CFD is the validation and testing of the code to be used for a computation.  The code can be a newly written one (the testing then is to determine if the code works properly), or it can be a commercial code (the testing then is to determine if the code is suitable for the task at hand).  Some of the cases described in the article below are easy to solve, while others are more difficult.But before entering the real world of Verification and Validation (VnV) check this manual
+
A common issue that arises in CFD is the validation and testing of the code to be used for a computation.  The code can be a newly written one (the testing then is to determine if the code works properly), or it can be a commercial code (the testing then is to determine if the code is suitable for the task at hand).  Some of the cases described in the article below are easy to solve, while others are more difficult.
 +
 
-
[http://www.csar.uiuc.edu/F_viz/gallery/VnV/SAND2002-0529.pdf Verification and Validation in Computational Fluid Dynamics]
 
When choosing a case for validation purposes, keep the following in mind:
When choosing a case for validation purposes, keep the following in mind:
Line 78: Line 78:
*[http://www.grc.nasa.gov/WWW/wind/valid/validation.html NPARC Alliance CFD verification and validation web-site]
*[http://www.grc.nasa.gov/WWW/wind/valid/validation.html NPARC Alliance CFD verification and validation web-site]
*[http://www.aero.gla.ac.uk/Research/CFD/projects/cfdval/TN02-016/TN02-016.html Test case validation database] at CFD Lab, University of Glasgow
*[http://www.aero.gla.ac.uk/Research/CFD/projects/cfdval/TN02-016/TN02-016.html Test case validation database] at CFD Lab, University of Glasgow
 +
*[http://www.csar.uiuc.edu/F_viz/gallery/VnV/SAND2002-0529.pdf Verification and Validation in Computational Fluid Dynamics]

Revision as of 20:29, 8 August 2006

Suitable cases for the validation and benchmarking of CFD codes. Articles should include a description of the case, data to compare with, and possibly contributed solutions. We could definitely use more three dimensional cases (only one has an article currently).

Contents

Introduction

A common issue that arises in CFD is the validation and testing of the code to be used for a computation. The code can be a newly written one (the testing then is to determine if the code works properly), or it can be a commercial code (the testing then is to determine if the code is suitable for the task at hand). Some of the cases described in the article below are easy to solve, while others are more difficult.


When choosing a case for validation purposes, keep the following in mind:

  • Don't try to do too much. If you have written a code, try the 2-D cases first. If you are testing a commercial code, it is probably best to try (vendor supplied) tutorial cases, and then move on to a test case that is like what the code will be expected to do.
  • Some of these cases are still active areas of research, particularly for LES and the like.
  • Don't rely just on the information here. The authoritative source is always the literature, so look at the references cited in the articles for definitive details.

1-D test cases

2-D test cases

3-D test cases

Transition test cases

Benchmark Problems in Aeroacoustics

1-D test cases

2-D test cases

3-D test cases

External links

My wiki