2024/2025

Mixing by Interfaces

How Does Water Infiltration Control Mixing and Reaction in Soils?

Natural Sciences
Illustrative image of water flowing through the ground and mixing the different components. Illustration: Camilla K. Elmar / CAS.

Principal investigators

Gaute Linga

Researcher
University of Oslo (UiO)
Year at CAS
Research Area
Physics

Abstract

The partially water-saturated soil region that extends from the Earth’s surface to the water table controls the access of nutrients and contaminants to the Earth’s aquifers. Understanding how dissolved chemicals mix and react when water infiltrates into these porous environments is thus critical. Despite infiltration being inherently dynamic, our understanding of mixing and reaction at the pore-scale is currently limited to steady flow. Leveraging recent breakthroughs by team members, this project aims to break new ground by characterizing and predicting mixing and reaction during water infiltration. The key outcome will be unique numerical data and theories revealing new laws for how air-water interface dynamics control mixing and reaction in porous media.

Fellows

profile image illustration

Tomás Aquino

PhD
IDAEA - Spanish National Research Council
Year at CAS
profile image illustration

Shabina Ashraf

PhD
NIT Calicut
Year at CAS
profile image illustration

Marcel Moura

PhD
University of Oslo (UiO)
Year at CAS
profile image illustration

Alexandre Puyguiraud

PhD
University of Rennes
Year at CAS

News

This month, one of our Young CAS Principal Investigators (PIs), Gaute Linga, a researcher at the University of Oslo, hosted his first Young CAS workshop at CAS.

It is with great enthusiasm that the Centre for Advanced Study (CAS) unveils the two chosen Young CAS Principal Investigators (PIs) for the upcoming two-year term: Professor Francesca Refsum Jensenius from the University of Oslo, who offers a penetrating analysis of the democratic processes in India, and researcher Gaute Linga from The Njord Centre, University of Oslo, focusing on the intricate process of water infiltration in soils.