Abstract
PIV measurements have been conducted for flows through a two-dimensional porous medium of high porosity, namely, a spatially periodic array of square rods. A series of instantaneous velocity vector plots are presented to investigate the transition from laminar to turbulence in the porous medium. The corresponding turbulence energy spectra at a selected point are also presented. It has been found that the flow remains laminar within the Reynolds number range studied, namely, 150 to 1500.
