Simulations of spatially developing turbulent boundary layers with localized application of three different control techniques aimed at reduction of skin friction drag. Considered control techniques are uniform blowing, body-force damping of wall-normal velocity component and opposition control.
Stroh, A., Hasegawa, Y., Schlatter, P., & Frohnapfel, B. (2016)
"Global effect of local skin friction drag reduction in spatially developing turbulent boundary layer."
Journal of Fluid Mechanics, 805, 303-321, doi: 10.1017/jfm.2016.545
- pseudo-spectral solver SIMSON External Link
- streamwise and spanwise periodicity of simulation domain
- weak random forcing for turbulence tripping
- Grid size Nx×Ny×Nz=3072×301×256
- Domain size Lx×Ly×Lz=3000×120×100 (based on initial displacement thickness)
- uncontrolled flow: Reθ=400-2500, Reτ=170-850
- three control types: uniform blowing with 0.5%U∞, damping of wall-normal velocity component by imposition of body force and opposition control scheme
- control region location: x=186-386
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