Granular and particle-laden flow: Novel approaches and applications to address grand challenges

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• Nathalie Vriend - BPI and Univeristy of Cambridge
• Wednesday 16 October 2019, 16:00-17:00
• Marine/Wolfson Building lecture hall, Bullard Labs..

If you have a question about this talk, please contact Jenny Jenkins.

A granular material forms a distinct and fascinating phase in physics—sand acts as a fluid as grains flow through your fingers, the fallen grains form a solid heap on the floor or may suspend in the wind like a gas.

The main challenge of studying granular materials is the development of constitutive models valid across scales, from the micro-scale (collisions between individual particles), via the meso-scale (flow structures inside avalanches) to the macro-scale (dunes, heaps, chute flows). When the particles are suspended in a fluid, forming a multiphase flow, physical laws are more complicated with additional influences and feedback effects.

In this presentation, I will introduce novel research on (1) avalanches, where we focus on the particle-particle interaction using photoelasticity, and (2) bedform dynamics, where we explore dune interaction and migration in an aqueous system.

This talk is part of the Bullard Laboratories Wednesday Seminars series.

This talk is included in these lists:

• Bullard Laboratories Wednesday Seminars
• Department of Earth Sciences seminars
• Marine/Wolfson Building lecture hall, Bullard Labs.

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