Permeability and Turbulence Over Perforated Plates

We perform direct numerical simulations of turbulent flow at friction Reynolds number Re_τ≈ 500 - 2000 grazing over perforates plates with moderate viscous-scaled orifice diameter d⁺≈ 40 - 160 and analyse the relation between permeability and added drag. Unlike previous studies of turbulent flows over permeable surfaces,...

Effect of packing height and location of porous media on heat transfer in a cubical cavity: Are extended Darcy simulations sufficient?

We numerically investigate natural convection in a bottom-heated top-cooled cavity, fully and partially filled with adiabatic spheres (with diameter-to-cavity-size ratio d/L=0.2) arranged in a Simple Cubic Packing (SCP) configuration. We study the influence of packing height and location of porous media. We carry out the simulations using...

Reflection and transmission trough a vertical, permeable breakwater: For the purpose of validating mathematical models

Results of labtests on reflection and transmission trough a vertical permeable breakwater for the purpose of validating mathematical models. In the laboratory a model of a vertical, permeable breakwater was constructed with elastocoast and tests were done with regular and irregular waves.