Hybrid feedback design for subsonic and transonic airfoils and wings
2014 (English)In: 52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014, National Harbor, 2014Conference paper (Refereed)
A hybrid inverse/optimization method for subsonic/transonic airfoil and wing shapedesign is presented with application to a range of airfoil and wing cases, in preparation forthe test cases defined for the Special Session of SciTech 2014. The method is hybrid in thesense that it combines the traditional inverse design technique with an optimization pro-cedure that determines the optimum target pressure distribution. This paper emphasizesthe first part, the development of SCID, the Surface Curvature Inverse Design method,the theory upon which it is based, including many of the details involved with shocks,smoothing and cross flow. The application of SCID to wing design poses many challenges,and how they are met is discussed in the context of a number of inverse design test casesfor airfoils and wings. The procedure works well for airfoils, whereas twist optimizationfor transonic wings remains a challenge. The real benchmarks for our hybrid approach arethe three Optimization Discussion Group design problems. Solutions are presented for thedrag minimization of the NACA airfoil along with the wing twist optimization problem,and conclusions are drawn from the results obtained. Work has started on the drag mini-mization of the CRM wing in transonic flight, and final results will be presented in a futurepaper.
Place, publisher, year, edition, pages
National Harbor, 2014.
inverse design, transonic wing
Research subject Aerospace Engineering
IdentifiersURN: urn:nbn:se:kth:diva-168151DOI: 10.2514/6.2014-0414ScopusID: 2-s2.0-84902795517ISBN: 978-1-62410-256-1OAI: oai:DiVA.org:kth-168151DiVA: diva2:814510
52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014; National Harbor, MD; United States; 13 January 2014 through 17 January 2014
QC 201505272015-05-272015-05-272015-06-11Bibliographically approved