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Grid Quality and Resolution Issues from the Drag Prediction Workshop Series

Mavriplis, Dimitri J. and Vassberg, John C. and Tinoco, Edward N. and Mani, Mori and Brodersen, Olaf P. and Eisfeld, Bernhard and Wahls, Richard A. and Morrison, Joseph H. and Zickuhr, Tom and Levy, David and Murayama, Mitsuhiro (2008) Grid Quality and Resolution Issues from the Drag Prediction Workshop Series. 46th AIAA Aerospace Sciences Meeting and Exhibit, 2008-01-07 - 2008-01-10, Reno, NV (USA).

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Abstract

The drag prediction workshop series (DPW), held over the last six years, and sponsored by the AIAA Applied Aerodynamics Committee, has been extremely useful in providing an assessment of the state-of-the-art in computationally based aerodynamic drag prediction. An emerging consensus from the three workshop series has been the identification of spatial discretization errors as a dominant error source in absolute as well as incremental drag prediction. This paper provides an overview of the collective experience from the worksho series regarding the effect of grid-related issues on overall drag prediction accuracy. Examples based on workshop results are used to illustrate the effect of grid resolution and grid quality on drag prediction, and grid convergence behavior is examined in detail. For fully attached flows, various accurate and successful workshop results are demonstrated, while anomalous behavior is identified for a number of cases involving substantial regions of separated flow. Based on collective workshop experiences, recommendations for improvements in mesh generation technology which have the potential to impact the state-of-the-art of aerodynamic drag prediction are given.

Document Type:Conference or Workshop Item (Paper)
Title:Grid Quality and Resolution Issues from the Drag Prediction Workshop Series
Authors:
AuthorsInstitution or Email of Authors
Mavriplis, Dimitri J.University of Wyoming, USA
Vassberg, John C.Boeing, USA
Tinoco, Edward N.Boeing, USA
Mani, MoriBoeing, USA
Brodersen, Olaf P.UNSPECIFIED
Eisfeld, BernhardUNSPECIFIED
Wahls, Richard A.NASA Langley, USA
Morrison, Joseph H.NASA Langley, USA
Zickuhr, TomCessna Aircraft Company, USA
Levy, DavidCessna Aircraft Company, USA
Murayama, MitsuhiroJapan Aerospace Exploration Agency, Japan
Date:7 January 2008
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CFD, Drag Prediction Workshop, Grid Quality
Event Title:46th AIAA Aerospace Sciences Meeting and Exhibit
Event Location:Reno, NV (USA)
Event Type:international Conference
Event Dates:2008-01-07 - 2008-01-10
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Concepts & Integration
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Configuration Design
Deposited By: Dr.-Ing. Olaf Brodersen
Deposited On:29 Jan 2009
Last Modified:27 Apr 2009 15:46

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