[Enviro-lunch] Today! 12pm: Professor Francois Blanchette

[Nate Bogie]

[image: Inline image 1]

Hello Everyone,

Please join us for a talk* today 9/6* by Prof. Francois Blanchette, 12-1pm
in Room SE2-302.

Title:

*Solid, fluid, and porous particles settling in a stratified ambient*

 Abstract:

Three particles walk into a stratification: a solid, a drop, and a porous
particle. What happens next? This is not a joke but rather an important
geophysical question. Particles of all types can be found settling or
rising in the oceans. We present here a brief overview of typical behaviors
exhibited by the three main types of particles: solid, fluid, and porous.
We focus on interactions between these particles and an ambient
stratification. Solid particles may be present in sufficiently large
numbers as to create their own density gradients. Fluid particles are
separated from the ambient by a fluid-fluid interface that can have a
variable surface tension. This in turn leads to sudden accelerations due to
Marangoni effects. Porous particles are able to exchange heat or salt with
the ambient, but they do so slowly, via diffusive effects, which results in
seemingly stagnant periods.

Bio:

Professor Blanchette did his undergraduate studies in Montréal, before
obtaining a Ph.D. in Mathematics at MIT. He went on to postdoctoral
positions in Mechanical Engineering at UCSB, and in Physics at the
University of Chicago. In 2006, he joined the brand new Applied Mathematics
program at UC Merced, where he has been since and which he now chairs. He
research is in fluid dynamics in general, with an emphasis on multiphase
flows and modeling.

When: Sept 6, Thursday, 12pm – 1pm



Where: SE2-302



Coffee will be provided, please bring your own mugs.



We look forward to seeing you,



Nate & Jing



Organizers for Fall 2018: Nate Bogie and Jing Yan

Faculty coordinator: Asmeret Asefaw Berhe
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