Editorial to the Special Issue: Mixing in Porous Media

Abstract

Mixing in porous media is a key process for a wide range of natural and engineered systems in geological, biological and synthetic porous media. It is a multi-scale phenomenon with spatial scales ranging from micrometers (pores and capillaries) to kilometers (aquifers and reservoirs), and temporal scales that range from seconds to years. Mixing in porous media is an interdisciplinary subject with a diversity of scientific and engineering applications that include the understanding of karst formation, groundwater and soil remediation, underground hydrogen storage, geological radioactive waste storage, geothermal energy production, mining, oil and gas production, porous reactors and batteries, as well as drug delivery, and nutrient transport in biological tissue and capillaries.