Tomas Trewhela and Dom Duxbury - Informal Applied Mathematics Seminar
|Dates:||7 February 2020|
|Times:||15:00 - 16:00|
|What is it:||Seminar|
|Organiser:||Department of Mathematics|
|Who is it for:||Current University students|
The Informal Applied Mathematics seminar will resume with a double bill from Tomas Trewhela and Dom Duxbury. Talks will take place in Frank Adams 2 (next to the Alan Turing Building's kitchen), with complimentary hot drinks and biscuits from 2.45pm on the atrium bridge. Title and abstracts for the talks can be found below.
Abstract: Particle-size segregation is produced when bulk grains, under the action of a mechanical force, sort themselves by their sizes. Most natural granular flows are gravity-driven, therefore they are subjected to basal shear stress, which produces relative movement between particle layers. As a result, small grains are more likely to fall through the voids generated by larger particles movement. When surrounded by smaller grains, the large particles rise. These simple mechanisms create patterns, structures and particle arrangements, that determines the outreach and extension of natural dense granular currents for example. A way to model the dynamics of dense granular flows is the well-known ?(I) rheology that considers shear, pressure and a length scale, usually the particles' diameter. A clear link between this rheology and particle segregation is still missing and this work seeks to address this issue. Three experimental setups are used to provide evidence on what drives the segregation of particles by their sizes and how it relates to the rheology or internal friction of the granular bulk.
Abstract: Dom Duxbury coming to you live to talk about real-time decision support systems
FYI: The Informal Applied Seminar is a weekly seminar for all applied mathematics students in the department. We get together on a Friday afternoon for students to speak about what they're working on at the moment. It's not formal - lecturers and staff don't attend - so it can be a good place to get feedback on your talk before an upcoming conference or just good to practise for public speaking in general. We generally meet on the bridge (outside the Alan Turing building first-floor kitchen) 15mins before the start and head to Sandbar for a drink afterwards.
Travel and Contact Information
Frank Adams 2
Alan Turing Building