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Abridged Summary of the Third AIAA Computational Fluid Dynamics Drag Prediction Workshop

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 Laflin, Kelly R. and Mavriplis, Dimitri J. (2008) Abridged Summary of the Third AIAA Computational Fluid Dynamics Drag Prediction Workshop. Journal of Aircraft, 45 (3), pp. 781-798. DOI: 20.2514/1.30572 ISSN 0021-8669

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Results of the Third AIAA Drag Prediction Workshop (DPW-III) are summarized. The workshop focused on the prediction of both absolute and differential drag levels for wing-body and wing-alone configurations that are representative of transonic transport aircraft. The baseline DLR-F6 wing-body geometry, previously used in DPW-II, is augmented with a side-of-body fairing to help reduce the complexity of the flow physics in the wing-body juncture region. In addition, two new wing-alone geometries have been developed for DPW-III. Numerical calculations are performed using industry-relevant test cases that include lift-specific and fixed-alpha flight conditions, as well as full drag polars. Drag, lift, and pitching-moment predictions from numerous Reynolds-averaged Navier-Stokes computational fluid dynamics methods are presented, focused on fully turbulent flows. Solutions are performed on structured, unstructured, and hybrid grid systems. The structured grid sets include point-matched multiblock meshes and overset grid systems. The unstructured and hybrid grid sets are composed of tetrahedral, pyramid, and prismatic elements. Effort was made to provide a high-quality and parametrically consistent familiy of grids for each grid type about each configuration under study. The wing-body families are composed of a coarse, medium, and fine grid, whereas the wing-alone families also include an extra-fine mesh. These mesh sequences are used to help determine how the provided flow solutions fare with respect to asymptotic grid convegence, and are used to estimate an absolute drag for each configuration.

Item URL in elib:https://elib.dlr.de/54350/
Document Type:Article
Title:Abridged Summary of the Third AIAA Computational Fluid Dynamics Drag Prediction Workshop
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vassberg, John C.BoeingUNSPECIFIED
Tinoco, Edward N.BoeingUNSPECIFIED
Wahls, Richard A.NASA LangleyUNSPECIFIED
Morrison, Joseph H.NASA LangleyUNSPECIFIED
Zickuhr, TomCessnaUNSPECIFIED
Laflin, Kelly R.CessnaUNSPECIFIED
Mavriplis, Dimitri J.University of WyomingUNSPECIFIED
Date:June 2008
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :20.2514/1.30572
Page Range:pp. 781-798
Keywords:AIAA Drag Prediction Workshop
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Eisfeld, Dr.-Ing. Bernhard
Deposited On:16 Jun 2008
Last Modified:27 Apr 2009 15:00

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