Université PSL

Visco-plastic Fluids: from Theory to Application

Visco-plastic Fluids: from Theory to Application
Date : 30/05-03/06/2016
Lieu : Udine

In classical models of visco-plastic fluids, these materials do not deform when subjected to a shear stress smaller than a certain value, which is called the yield stress.
In this range of applied shear stress, these materials behave as ideal rigid solids. If the shear stress in the fluid exceeds the yield stress then the fluid deforms as a (nonlinearly) viscous fluid and is typically shear thinning since the fluid structure breaks down progressively with shear.

Therefore, from both a physical and mathematical perspective, the yield stress threshold effects a fundamental change to the fluid mechanics of the problem. The visco-plastic fluids play a prominent role in many industrial processes, as in the food industry (e.g., dairy products, chocolate confections, pulp suspension), the petroleum industry (drilling mud, cement, waxy crude oil), the biological industry (e.g., mucus and blood clot), the natural phenomena (e.g., flows of slurries, debris and lava), and in various complex printing and coating processes.
The proposed course is designed for advanced graduate students as well as postdoctoral researchers across several disciplines (e.g., Mathematics, Physics and Engineering), with the aim of providing them with tools and techniques that are essential in performing research on the flow problems of visco-plastic fluids. Notably, we envision a broad and lively discussion of all the theoretical developments, analytical and computational methodologies, recent experimental methods and existing applications.