Design of airfoils to mitigatewake bursting

Brent W. Pomeroy, Michael S. Selig

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Strong adverse pressure gradients applied to a wake can cause off-the-surface separation in the wake, which is known as wake bursting. Three high-lift multielement airfoils, consisting of a main element and two flaps, were designed to improve aerodynamic performance and to mitigate wake bursting relative to a baseline airfoil. Two airfoil designs incorporating only modifications to the main-element airfoil are presented for target Reynolds numbers of 1×106 and 3×106. A third airfoil is presented for which the geometry of the main element and both flaps was modified. The designed airfoils exhibited an increase of Cl=Cd by as much as 17% relative to the baseline geometry as predicted by USM3D, an unstructured RANS solver. Improvements were made by incorporating increased laminar run and improved main-element wake behavior.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624104473
StatePublished - 2017
Externally publishedYes
Event55th AIAA Aerospace Sciences Meeting - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

NameAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting


Other55th AIAA Aerospace Sciences Meeting
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering


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