Sneddon Lecture 2022: Oldroyd B, and not A?

Professor John Hinch, FRS (University of Cambridge)

Tuesday 15th March, 2022 16:00-17:00 Online

Abstract

The School of Mathematics and Statistics is delighted to invite you to the Sneddon Lecture 2022, which will be held on Tuesday 15th March 2022, 16:00 - 17:00 GMT via Zoom.

The lecture will be given by Professor John Hinch, FRS, who is based at the Department of Applied Maths and Theoretical Physics at the University of Cambridge and who is also a Fellow of Trinity College, Cambridge and a Fellow of the Royal Society. His main research interests are: micro-hydrodynamics, colloidal dispersions, flow through porous media, polymer rheology, non-Newtonian fluid dynamics, mobile particulate systems and applications of mathematics to industrial problems.

His lecture, entitled Oldroyd B, and not A?, touches upon intriguing research overlap with Ian Sneddon, after whom this lecture is named, which can be traced back to Sneddon’s and Oldroyd’s early days as students at Trinity College. You can find out more in the abstract below:

We examine Oldroyd's 1950 paper "On the Formulation of Rheological Equations of State" in which he introduced the upper and lower convected time-derivatives, along with the Oldroyd-A and Oldroyd-B model fluids. Those developments are placed in context of prior ideas and his own subsequent papers on constitutive equations. The choice between the A and B models is addressed by looking at micro-structural studies, finding that something in between is appropriate. Finally some refinements are discussed in terms of the elastic-dumbbell model.

In researching the early career of Jim Oldroyd, one comes across Ian Sneddon. Both born in 1921. Both students at Trinity College in the University of Cambridge. Both obtaining firsts in the same Mathematics examinations in 1941. Both of whose research involved Frohlich and Sack at Bristol.

To attend, please register in advance at https://sneddon-lecture-2022.eventbrite.co.uk  

We are looking forward to having you.

Recording

A recording of this lecture is available here.

 

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