  Porous bleed systems are a common technique to control shock-boundary layer
interactions and/or supersonic boundary layers. However, the influence of
various design parameters is still unknown. Even though bleed models are
required to minimize the costs of the design process, they often do not include
parameter effects. In the present study, the effect of the plate length, the
hole diameter, the porosity, the thickness-to-diameter ratio, and the stagger
angle are investigated by means of three-dimensional RANS simulations. The
bleed efficiency and the effectiveness in thinning a Mach M = 1.6 turbulent
boundary layer are determined. The findings show a crucial influence of the
hole diameter on both efficiency and effectiveness of the porous bleed. Similar
findings are made for the porosity and stagger angle but with a smaller
significance. Thickness-to-diameter ratio and plate length are shown to mainly
affect the bleed efficiency.
