Ambiguities, inconsistencies, and recommended interpretations of the commonly cited definition of validation for computational fluid dynamics codes/models are examined. It is shown that the definition-deduction approach is prone to misinterpretation, and that bottom-up descriptions rather than top-down legalistic definitions are to be preferred for science-based engineering and journal policies, though legalistic definitions are necessary for contracts.

Issue Section:
Technical Briefs
Keywords:
validation, calibration, computational fluid dynamics
Topics:
Accreditation, Calibration, Computational fluid dynamics, Regulations, Uncertainty, Modeling, Ambiguity, Engineers, Flow (Dynamics), Turbulence
1.
Department of Defense
, 1996, “
DoD Modeling and Simulation (M&S) Verification, Validation, and Accreditation (VV&A)
,” DoD Instruction No. 5000.61.
2.
Department of Defense
, 1994, “
DoD Modeling and Simulation (M&S) Management
,” DoD Directive No. 5000.59.
3.
Military Operations Research Society
, 1994,
Simulation Validation (SIMVAL) 1994, Mini-Symposium Report
, Sept. 28–30.
4.
AIAA
, 1998,
Guide for the Verification and Validation of Computational Fluid Dynamics Simulations
,
American Institute of Aeronautics and Astronautics
,
Reston, VA
.
5.
ASME Committee PTC-60
, 2006, ANSI Standard V&V 10. ASME Guide on Verification and Validation in Computational Solid Mechanics.
6.
ASME Committee PTC-61
, 2008, ANSI Standard V&V 20. ASME Guide on Verification and Validation in Computational Fluid Dynamics and Heat Transfer.
7.
ASCE/EWRI Task Committee
, 2009, 3D Free Surface Flow Model Verification/Validation.
8.
Roache
,
P. J.
, 1998,
Verification and Validation in Computational Science and Engineering
,
Hermosa
,
Albuquerque
,
NM
.
9.
Pace
,
D. K.
, 2008, personal communication.
10.
Celik
,
I.
, 2006, personal communication.
11.
Oberkampf
,
W. L.
,
Trucano
,
T. G.
, and
Hirsch
,
C.
, 2004, “
Verification, Validation, and Predictive Capability in Computational Engineering and Physics
,”
Appl. Mech. Rev.
0003-6900,
57
(
5
), pp.
345
–
384
.
Crossref
Search ADS
 
12.
Tsang
,
C. -F.
, 1991, “
The Modeling Process and Model Validation
,”
Ground Water
0017-467X,
29
(
6
), pp.
825
–
831
.
Crossref
Search ADS
 
13.
Wilcox
,
D. C.
, 2006,
Turbulence Modeling for CFD
,
DCW
,
La Canada, CA
.
14.
Driver
,
D. M.
, and
Seegmiller
,
H. L.
, 1985, “
Features of a Reattaching Turbulent Shear Layer in Divergent Channel Flow
,”
AIAA J.
,
23
(
1
), pp.
163
–
171
. 0003-6900
15.
Eça
,
L.
, and
Hoekstra
,
M.
, 2007,
Announcement for the Third Workshop on CFD Uncertainty Analysis
, Instituto Superior Técnico,
Lisbon, Portugal
, Oct. 23–24.
Copyright © 2009
 by American Society of Mechanical Engineers
You do not currently have access to this content.