spring2004_sp3

spring2004_sp3 - Lab (S/L3) Tunnel Testing of a 3-D Wing...

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Unformatted text preview: Lab (S/L3) Tunnel Testing of a 3-D Wing Unified Engineering 27 Feb 04 Learning Objectives Measure lift, drag, moment from load cell data, using reference-axis conversions Perform lift and drag predictions for a 3-D wing, and compare to measurements Use smoke visualization to see tip vortices Interpret tufts and acoustic-probe noise to detect ow separation Secondary Objectives, for Flight Competition Project Get familiar with wing performance parameters for 3-D wings Get experimental data for stock Dragony wing, to serve as a baseline for redesign work Experimental Rig Test Article: Dragony wing in WBWT Instrumentation: Tunnels pitot-static probe Wing load cell Wing parameters: c S = 448 in 2 wing area b = 47 in wing span avg = 9 . 5 in average chord e = . 95 span eciency, estimated Test Conditions Nominal tunnel speeds: V = 10, 15, 20 mph Angles of attack: = 2 . . . 20 , in increments of 2 ....
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spring2004_sp3 - Lab (S/L3) Tunnel Testing of a 3-D Wing...

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