Drag Reduction in Turbulent Boundary Layers with Half Wave Wall Oscillations

Spatial square waves with positive cycle are used as steady forcing technique to study drag reduction effects on a turbulent boundary layer flow. Pseudospectral method is used for performing direct numerical simulations on very high resolution grids. A smooth step function is employed to prevent Gib...

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Veröffentlicht in:	Mathematical problems in engineering 2015-01, Vol.2015 (2015), p.1-7
Hauptverfasser:	Mishra, Maneesh, Skote, Martin
Format:	Artikel
Sprache:	eng
Schlagworte:	Aircraft Boundary conditions Boundary layer Boundary layer flow Direct numerical simulation Discontinuity Drag reduction Finite volume method Fourier transforms Gibbs phenomenon Mathematical models Mathematical problems Oscillations Partial differential equations Skin Skin friction Spectral methods Square waves Step functions Turbulence Turbulent boundary layer Turbulent flow Velocity Walls
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