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Prediction and experimental evaluation of planar wing spanloads for minimum drag
Wroblewski, Gabrielle E
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https://hdl.handle.net/2142/90675
Description
- Title
- Prediction and experimental evaluation of planar wing spanloads for minimum drag
- Author(s)
- Wroblewski, Gabrielle E
- Issue Date
- 2016-04-28
- Director of Research (if dissertation) or Advisor (if thesis)
- Ansell, Phillip J.
- Department of Study
- Aerospace Engineering
- Discipline
- Aerospace Engineering
- Degree Granting Institution
- University of Illinois at Urbana-Champaign
- Degree Name
- M.S.
- Degree Level
- Thesis
- Date of Ingest
- 2016-07-07T19:58:15Z
- Keyword(s)
- multidisciplinary design optimization
- wake survey method
- Abstract
- Optimum wing spanloads were evaluated by comparing wing performance values from theoretical predictions and experimental wind-tunnel measurements. The optimum spanloads were found using a Lagrange multiplier optimization method. They were designed with a prescribed wing-root bending moment constraint with and without incorporating viscous representation. Wind-tunnel models were created based on the optimum spanloads and the experiments were conducted to evaluate the changes in drag as the design constraints differed. The results indicate that an optimized spanload having equal lift and wing-root bending moment to that of an elliptically-loaded wing can experience significant decreases in drag. Comparisons between the theoretical predictions and the wind-tunnel models were made using experimental 5-hole probe wake-survey measurements, which were reduced into total lift and drag, as well as spanwise lift distributions.
- Graduation Semester
- 2016-05
- Type of Resource
- text
- Permalink
- http://hdl.handle.net/2142/90675
- Copyright and License Information
- Copyright 2016 Gabrielle Wroblewski
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Graduate Dissertations and Theses at Illinois PRIMARY
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