EXPERIMENTAL DATA: Forces, Moments, Pressure Coefficients

2nd AIAA CFD High Lift Prediction Workshop

Some relevant force, moment, and pressure coefficient experimental wind tunnel data for the DLR F11 (in landing configuration, slat 26.5 deg, flap 32 deg) are given here for two different Reynolds numbers. Both body and wing are included in the experimental forces and moments (via an internal balance).

Experimental Data Files (data have been corrected for wall effects):

Download all the force/moment and Cp data in one gzipped tar file: DataExp_v2.tar.gz.

Note that the file cp_distr_alpha=16_RUN238_Re=15.1e6.dat was corrected for 3 typos (missing minus signs) on 2/4/2013).

Pressure Tap Locations (upper and lower surfaces):

Section Label	eta, %	Y, mm
PS 01	15.0	209.67
PS 02	28.8	403.87
PS 03 (not used)	35.2	492.83
PS 04	44.9	629.14
PS 05	54.3	760.30
PS 06	68.1	952.95
PS 07	71.5	1001.28
PS 08	75.1	1051.35
PS 09	81.8	1145.79
PS 10	89.1	1247.68
PS 11	96.4	1349.83

In the landing configuration used for this workshop, the above y-locations are representative of the pressure rows on the main wing only. On the slat and flap (which have undergone translation and rotation), the definitions of the planes containing the pressure tap locations are given in the following document: model-sketch-dimensions_hiliftpw2-f11.pdf (also available on the Geometries Page). Some information helpful for extracting pressure coefficients appropriately from CFD datasets can be found on the Data Submittal Forms and Postprocessing Info Page.

Sample pressure distributions (click on plot to enlarge)

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Responsible NASA Official: Christopher Rumsey
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Last Updated: 02/04/2013