Permeability and the Ergun Equation as a Basis for Permeability Measurements of Metallic Foams and Wire Meshes

Abstract This paper concerns a method and test set-up to measure the permeability of plates metal foams sets wire meshes used control flows in fluid filters other flow systems designed yield constant velocity distributions over large cross sections flows. The is based on considerations using Ergun equation describe pressure losses packages mono-dispersed spheres. One correlation suggested for k entire range mean velocities U 0 . A suitable measuring was designed, built metallic meshes. specific objective present investigation provide data combined with properties that are mainly characterized by smallest mesh size. presentation clearly illustrates ranges laminar turbulent through results compared those technical porous plates. indicates general features same.