Parallel optimization of flapping airfoils in a biplane configuration for maximum thrust

Date

2004-05-27

Author

Tuncer, İsmail Hakkı
Kaya, M

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Flapping airfoils in a biplane configuration are optimized for a maximum thrust production. A parallel Navier-Stokes solver on overset grids and a gradient based parallel optimization method are employed. The periodic flapping motion of airfoils in a plane configuration is described in a combined pitch and plunge. The pitch and plunge amplitudes and the phase shift between them are optimized for a range of flapping frequencies. It is shown that at low flapping frequencies, flapping airfoils in a biplane configuration produce more thrust than a single flapping airfoil. However, at high flapping frequencies the pitch amplitude tends to go to zero, which promotes an early leading edge vortex formation and limits the thrust production.

Subject Keywords

Optimization problems, Unsteady flows, Domain decomposition

URI

https://hdl.handle.net/11511/53208

Collections

Department of Aerospace Engineering, Conference / Seminar