Proceedings
of the
1st AIAA CFD Drag Prediction Workshop
Sponsored by the Applied Aerodynamics TC
A 2-Day Workshop Preceding the 19th APA Conference
9-10 June 2001, Anaheim, CA
Objectives
-
To assess the state-of-the-art computational methods as practical aerodynamic
tools for aircraft force and moment prediction.
-
To provide an impartial forum for evaluating the effectiveness of existing
computer codes and modeling techniques using Navier-Stokes solvers.
-
To identify areas needing additional research and development.
Focus
-
The focus of this workshop will be on drag prediction accuracy. The DLR-F4
test cases have been chosen that address a subsonic wing/body transport
configuration flying at subsonic through transonic speeds. The prediction
of drag polar and drag rise will be particularly emphasized.
-
A statistical framework will be used to assess the comparisons within the
computational results and with the test results.
Program and Presentations
Final_Schedule_and_Results.html
Participant List and Test Case Results
participant_list.html
Test Cases
Definition of test conditions for required and optional test cases:
Test conditions: cases.pdf,
5KB
A description of how the geometry was put together:
Geometry
DLR-F4 Data Reference:
AGARD-AR-303, Aug. 1994: agard-ar-303.pdf,
742KB
GARTEUR TP-018, 1985, A comparison of Experimental Results for the
Transonic Flow around the DFVLR-F-4 Wing Body Configuration: Final Report
http://www.garteur.org/aerodynamics.htm
Data files: bwma60.txt
(18KB),
bwma75.txt
(17KB), bwma80.txt
(17KB), cpdra.txt
(48KB), cpnlr.txt
(48KB), cpone.txt
(52KB). See Tables 1-3 in AGARD-AR-303 for a description of the data
files.
Do not consider the data in this report the "correct" answer. The computations
for this workshop will be fully turbulent. We are not necessarily testing
how well we can match wind tunnel data (you will note the drag data is
provided with only 2 significant digits). The statistical analysis will
emphasize the comparisons within the computational results.
Statistical Framework:
The following link describes the statistical framework that will be used
to compare the code results from the participants and includes a detailed
example based on the results from a similar, but less extensive, study
done in Europe. Statistical
Framework
Workshop Committee
| Participant |
Affiliation |
| Shreekant Agrawal |
The Boeing Company
Phantom Works |
| David W. Levy |
The Cessna Aircraft Company |
| John Vassberg |
The Boeing Company
Phantom Works |
| Tom Zickuhr |
The Cessna Aircraft Company |
| Richard A. Wahls |
Configuration Aerodynamics Branch
NASA Langley Research Center |
| Michael J. Hemsch |
Research Facilities Branch
NASA Langley Research Center |
| Bastiaan Oskam |
National Aerospace Laboratory, NLR |
| Shahyar Pirzadeh |
Configuration Aerodynamics Branch
NASA Langley Research Center |
| Rick Matus |
Pointwise, Inc. |
| Juergen Quest |
ETW GmbH |
For more information . . .
Contact the work shop
Workshop email: dpw@cessna.textron.com
Wing-body test case
Color graphic: dpwfig1.jpg,
43KB
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Dr. Neal T. Frink
Last Updated
November 6, 2002
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