Modeling of flow nonuniformities in fissured porous media

Abstract A review is performed to trace how fissured porous media arise in nature. It is found that packed beds resemble fissured porous media. The range of multiple flow time‐scales inherent in such media becomes larger as the particle size range becomes broader, resulting in flow nonuniformities. The status of experimental measurements of voidage and flow nonuniformities is assessed. Some of the difficulties associated with modeling of the multiple flow time‐scales are discussed, and a tentative model is proposed.