A 3-year PhD position is available in co-supervision between the Geosciences Department at the University of Rennes and IRPHÉ at Aix-Marseille University, France. The research focuses on the dissolution trapping of CO2, specifically convective dissolution in granular porous media. This project is funded by CNRS and aims to advance understanding of how CO2 can be stored in subsurface geological formations through dissolution processes.

The PhD project will experimentally study convective dissolution in granular porous media using advanced optical methods such as laser-induced fluorescence and stereo-PIV to measure three-dimensional concentration fields and flow velocities. The research is highly interdisciplinary, combining geosciences, fluid mechanics, hydrology, and engineering. The successful candidate will have the opportunity to work in both Rennes and Marseille, with a one-year secondment at the partner institution.

Applicants should have a master's degree in engineering (mechanical, chemical, civil) or natural sciences (fluid mechanics, physics, earth sciences, hydrology). Strong knowledge of fluid mechanics and transport processes is required, and experience with table-top flow experiments is a strong asset. Skills in Matlab or Python for data analysis, especially image processing, are appreciated. Good organizational skills and the ability to work in interdisciplinary teams are essential. The working language can be English or French, and women are strongly encouraged to apply.

The position offers the standard CNRS PhD student salary, including social security benefits, and provides all necessary equipment and lab space. The University of Rennes and Aix-Marseille University are committed to gender equality and offer a stimulating research environment. The application deadline is March 15, 2026, and the start date is as early as possible, but no later than July 1, 2026.

To apply, send your application electronically to Prof. Yves Méheust and Prof. Patrice Meunier, including a CV, publication list, and a short statement of motivation.