Dynamics of flexible fibers in structured environments

Conf’luence Ruben Juanes

Professeur Department of Civil and Environmental Engineering

Department of Earth, Atmospheric and Planetary Sciences

Massachusetts Institute of Technology, USA

Jeudi 20 juin à 10 h 30 • Amphithéâtre Nougaro

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Abstract:
The displacement of one fluid by another in a porous medium gives rise to a rich variety of hydrodynamic instabilities. Beyond their scientific value as fascinating models of pattern formation, unstable porous-media flows are essential to understanding many natural and man-made processes, including water infiltration in the vadose zone, carbon dioxide injection and storage in deep saline aquifers, methane venting from organic-rich sediments, and fracturing from fluid injection. This lecture will provide insight into some of these hydromechanical instabilities, elucidate the key physics at play, and point to modeling frameworks at either the pore scale or the continuum (Darcy) scale that permit quantitative assessments of their impact at the geologic scale.