Active Aerodynamic Load Control for Multi-Element Airfoils

Speaker: Sheida Hosseini, University of California, Davis
April 26, 2018

Seminar video is unavailable due to technical difficulties.

Abstract

We explore the feasibility of using nominally-orthogonal jets near the flap trailing edge as active aerodynamic load control on the two-element airfoil NLR7301 at a high-lift condition. We utilize Chimera Grid Tools to generate structured curvilinear overset grids, and the Reynolds-averaged Navier-Stokes solver OVERFLOW-2 to solve for the flow field around the airfoil. We investigate lift-enhancement using nominally-orthogonal jets with various momentum coefficients. We discuss that utilizing a nominally-orthogonal jet that can shift the linear region of the lift curve upward for the pressure and downward for suction side jet. Results of this study show that large and controllable changes in aerodynamic performance can be achieved by relatively small active flow control inputs using the nominally-orthogonal jets.

Biography

Sheida Hosseini is a Ph.D. candidate in the Department of Mechanical and Aerospace Engineering at the University of California, Davis, where she works with Professor Case van Dam. Her dissertation work focuses on Active Flow Control applications on airplane high-lift systems. The work is carried out in collaboration with the Boeing Company and NASA’s Advanced Air Transport Technology (AATT) project. Sheida is a recipient of the Joe Steger Fellowship for her academic work in the field of computational fluid dynamics. She holds a bachelor’s degree with a double major in mechanical and aeronautical engineering from the University of California, Davis.

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