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CFD
Policy
Since 1990, the Fluids Engineering Division of ASME
has pursued activities concerning the detection, estimation
and control of numerical uncertainty and/or error in computational
fluid dynamics (CFD) studies. Recently, the CFD Standards
Sub-Committee of the CFDTC has developed a policy for
quantifying numerical uncertainty in computational results.
This new policy details the use of one possible method
to quantify the numerical uncertainty in the conducted
study. It is meant to facilitate CFD publication by providing
practitioners with a method that is straightforward to
apply, is fairly well justified and accepted, and will
avoid possible review bottlenecks, especially when the
CFD paper is an applications paper rather than one concerned
with new CFD methodology.
The
CFD Standards Sub-Committee of the CFD TC has proposed
a method for quantification of numerical uncertainty in
computational data generated by CFD. We now seek input/feedback
on it from the CFD community. The CFD Standards Sub-Committee
will study all input, and develop a final version of the
method. The new policy will then replace the currently
existing policy for publication of CFD results in the
Journal of Fluids Engineering.
Please
be sure to submit your feedback by
January 31, 2005. We welcome
and appreciate your interest and your comments.
All
the documents listed below are in pdf format
- Current
JFE Publication Policy
- Proposed Method for Quantification of Numerical Uncertainty
Since 1990, the Fluids Engineering Division of ASME has
pursued activities concerning the detection, estimation
and control of numerical uncertainty and/or error in computational
fluid dynamics (CFD) studies. The first quality-control
measures in this area were issued in 1986 (Roache et al.,
[8]), and revised in 1993 (Freitas [5]). Given the exponential
increase in CFD related publications, and the many significant
advancements in computational techniques and computer
technology, it has become necessary to revisit the same
issue and formulate a more detailed policy to further
improve the quality of publications in this area. This
brief note provides specific guidelines for prospective
authors for calculation and reporting of discretization
error estimates in CFD simulation for experimental data
may or may not be available for comparison. The underlying
perspective is that CFD-related studies will eventually
aim to predict the outcome of a physical event for which
experimental data is not available.
It should be emphasized that the requirements outlined
in this note do not preclude those already published
in the previous two policy statements (Roache et al.
[8], Freitas [5]). It is also important to keep in mind
that the procedure recommended in this note cannot possibly
encompass all possible scenarios or applications.
The numbers within brackets designate similarly numbered
references in the Reference Section.
The Sub Committee worked on this for nearly 2 years, and
developed it with much care and concern for CFD researchers
and prospective JFE manuscript authors.
Sub Committee Members
- Ismail B. Celik, University of West Virginia
Ismail.Celik@mail.wvu.edu
- Hugh W. Coleman, University of Alabama, Huntsville hughcoleman@uncertainty-analysis.com
- Christopher J. Freitas, South West Research Institute
christopher.freitas@swri.org
- Urmila Ghia, University of Cincinnati
urmila.ghia@uc.edu
- Peter E. Raad, Southern Methodist University
praad@mail.smu.edu
- Patrick J. Roache, Consultant
hermosa@swcp.com
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