Particle transport in porous media: The role of inertial effects and path tortuosity in the velocity of the particles

作者：Guido Kampel, Guillermo H. Goldsztein, Juan Carlos Santamarina · 发表于：Applied Physics Letters · 年份：2009 · DOI：10.1063/1.3263718 · 被引用次数：19 · 研究领域：Particle Dynamics in Fluid Flows、Groundwater flow and contamination studies、Granular flow and fluidized beds

Fluid in porous media flows through tortuous paths. If the size of the solid particles suspended in the fluid and the fluid velocities are large enough, Brownian motion effects may not be dominant. In this parameter regime, the average velocity of the particles is different than that of the fluid. We obtain the relation between the average velocity of the particles and the average velocity of the fluid in the context of a simple mathematical model and we apply our results to flows near wells.