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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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|
|Date:||7 January 2008|
|In ISI Web of Science:||No|
|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|
|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|
|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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