Airplane Flow-Field Measurements

Paper #:
  • 975535

Published:
  • 1997-10-01
Citation:
Crowder, J., Watzlavick, R., and Krutckoff, T., "Airplane Flow-Field Measurements," SAE Technical Paper 975535, 1997, https://doi.org/10.4271/975535.
Pages:
11
Abstract:
The utility of airplane flow-field measurements for wind-tunnel testing is reviewed. The methods and equipment developed at Boeing for these measurements are also described. The details of the latest system are presented along with typical results from recent wind-tunnel tests. Using the latest system, flow-field surveys of airplane configurations in industrial low-speed and transonic wind tunnels provide spatial distributions of lift and drag (profile and induced) with good repeatability. In addition, the probe speed and survey region is optimized so that typical full-wake surveys take 20-30 minutes to complete. Final data, displayed as total pressure, velocity vectors, vorticity contours, and distributions of lift and drag (profile and induced) are available approximately 10 minutes after survey completion.
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