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EXPERIMENTAL DATA: Velocity Probes

1st AIAA CFD High Lift Prediction Workshop


Image of an unstructured trap wing grid Image of a trap wing CFD solution

 

A limited amount of velocity probe experimental data from the 14x22 test are given below. These were taken using a 7-hole probe, and are given at 2 locations on the flap (83% span), and 2 locations on the main element (15% span and 83% span). Data are only available for Configuration 1 for corrected angles of attack of approximately 10 deg, 20 deg, and 28 deg (the latter angle is one of the cases from the Workshop).

Photo of probe mechanism under the wing lower surface Photo of probe collecting data over the wing upper surface

 

7-hole Probe Data:

(be sure to scroll to the bottom of the page for important information about probe data over the flap!)

Configuration 1, alpha=10 deg:

Configuration 1, alpha=20 deg:

Configuration 1, alpha=28 deg:

Probe locations over the Trap Wing

 

NOTES:

Shifted Flap Data to account for different 2002 QA flap position:

Configuration 1, alpha=10 deg:

Configuration 1, alpha=20 deg:

Configuration 1, alpha=28 deg:

Plots are shown below comparing the 2 flap positions (at span station near y=-72): red shows the 1998/1999 flap position and the corresponding 7-hole probe locations; green shows the 2002 QA flap position (used by CFD for the workshop) and the shifted probe locations relative to that position.
Difference in probe locations at the front of the flap Difference in probe locations at the back of the flap

 

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Page Curator and NASA Official Responsible for Content
Christopher Rumsey  

Last Updated
October 14, 2011

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