This paper concerns a method and a test set-up to measure the permeability of plates of metal foams and sets of wire meshes used to control flows in fluid filters and other flow systems designed to yield constant velocity distributions over large cross sections of flows. The method is based on permeability considerations using the Ergun equation to describe the pressure losses of packages of mono-dispersed spheres. One correlation is suggested for the permeability k over the entire range of mean velocities U₀. A suitable measuring set-up was designed, built and used to measure the permeability of plates of metallic foams and sets of wire meshes. The specific objective of the present investigation was to provide permeability data for combined sets of wire meshes with flow properties that are mainly characterized by the wire meshes with the smallest mesh size. A method of data presentation is suggested that clearly illustrates the ranges of laminar and turbulent flows through the wire meshes. The results are compared with those for technical porous plates. The suggested presentation of the results indicates that the general features of the flows through porous plates of metal foams and wire meshes are the same.

本文涉及一种用于测量金属泡沫板和丝网组渗透性的方法和测试装置，该方法和测试组用于控制流体过滤器和其他流系统中的流量，这些流量系统旨在在较大的流截面上产生恒定的速度分布。该方法基于渗透性考虑，使用Ergun方程来描述单分散球体包装的压力损失。建议在平均速度U ₀的整个范围内对渗透率k进行一种相关。设计，构建并使用了合适的测量装置，以测量金属泡沫板和金属丝网组的渗透率。本研究的特定目的是为具有流动特性的金属丝网的组合集提供渗透性数据，这些特性主要由具有最小网眼尺寸的金属丝网表征。提出了一种数据表示方法，该方法可以清楚地说明通过金属丝网的层流和湍流范围。将结果与工业多孔板的结果进行比较。建议的结果表示法表明，通过金属泡沫和金属丝网的多孔板流动的一般特征是相同的。