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Optimization of Synthetic Jet Parameters Over an Elliptical Profile Using Response Surface Methodology

E. ERLER, I. H. TUNCER, M. H. SOHN

Abstract


Low speed viscous flows over a 12.5% thick elliptic profile in the presence of a synthetic jet and the coanda effect are investigated numerically. The synthetic jet parameters including its location over the profile are optimized for minimum drag using the Response Surface Methodology. The flow solutions required by the design of experiment are computed in parallel in a PC cluster. Unsteady viscous flow fields are calculated with a Navier Stokes flow solver. The numerical method is first validated in the presence of a steady-blowing. Optimization studies are performed next with application of the synthetic jet. At 0 and 4 degree angles of attack, the drag is reduced by 32.5% and 24% respectively. At 14 degree angle of attack, the drag is reduced by as much as 66%.

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