Fluid flow through randomly packed monodisperse fibers: The Kozeny-Carman parameter analysis

Experimental studies have been carried out on fluid flow through porous media made up of randomly packed monodisperse fibers. The permeability and the Kozeny-Carman parameter k(k) are deduced from experimental results. The variations of the permeability increase exponentially with the porosity. The parameter k(k) is a decreasing function of the porosity epsilon and tends asymptotically to a value close to that deduced from a modified Ergun relation. The important decrease, observed for small aspect ratios, is certainly an effect of the cut sections of fibers. The results in terms of parameter k(k), are systematically compared to those deduced from various theoretical models. The variation laws of the parameter k(k), deduced from different models, present important discrepancies with our experimental results.