...J.P. Gourc; J.P. Giroud; V. Aubert ABSTRACT: This technical note presents a theoretical model for laminar and non-laminar flow through porous media. The relationship between hydraulic conductivity and hydraulic gradient expressed by the model is in good agreement with the results of hydraulic...

... that the flow is non-laminar. Despite the non-laminar nature of flow in these materials, Darcy's equation and equations derived from Darcy's equation are extensively used for the design of geosynthetic and granular drainage systems, even though these equations are strictly valid only for laminar flow. Therefore...