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Upcoming events in Mathematics

(previous see here)
Mon 11/09/17 14:00
Fulton G20
Mathematics Seminar
Prof. Alexander Gorban (University of Leicester)
(Themes: Numerical analysis, Data analysis)
Mon 18/09/17 14:15
Fulton G20
Mathematics Seminar
Dr. Theodosios Papathanassiou (Brunel University London)
Finite Elements for the Hydroelastic Response of Very Large Floating Structures under Long Wave Excitation
abstract

Abstract

The study of wave action on large, elastic floating bodies has received considerable attention, finding applications in both geophysics and marine engineering problems. Pontoon-type Very Large Floating Structures (VLFSs) share the same hydroelastic characteristics with ice floes and as a result the methodologies developed for their study bear great resemblance. Among these methodologies, efficient Finite Element schemes for the simulation of hydroelastic interactions in shallow water environments have been recently proposed. These numerical procedures, based on the vertical method of lines, will be presented and analysed. The talk will cover issues regarding (i) weak forms, properties and stability characteristics of the governing equations, (ii) Finite Element approximation and suitable time integration techniques, (iii) Energy norm error estimates and (iv) numerical examples of hydroelastic interactions in variable bathymetry regions.

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Mon 09/10/17 14:15
Fulton G20
Mathematics Seminar
Dr. Radu Cimpeanu (University of Oxford)
Electrohydrodynamic control of multi-fluid systems at small scales
abstract

Abstract

With sizes not exceeding a few centimetres and usage ranging from blood sample analysis to cooling devices and integrated circuit components (and far beyond), liquid systems at small scales play an indispensable part in our lives. Their production and maintenance however is a highly sensitive and expensive process. This body of research focuses on eliminating these drawbacks by creating efficient mechanisms that do not use any moving parts and do not require the presence of an oncoming flow. We analyse electrostatic control procedures in simple geometrical configurations, such as channels containing layers of immiscible fluids. Stability theory guides the imposition of voltage distributions that efficiently manipulate the fluid-fluid interface and harness the classical instabilities arising in such systems. We then formulate nonlinear asymptotic models that enable the study of the interfacial motion far beyond the level of small perturbations. Finally, we implement state-of-the-art computational tools based on the volume-of-fluid method in both two- and three-dimensional contexts to steer these arguments towards practical applications involving microfluidic mixing, pumping and directed polymer assembly.

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Mon 23/10/17 14:15
Fulton G20
Mathematics Seminar
Prof. Christian Engwer (University of Münster)
(Themes: Mathematical Biology, Numerical Analysis)
Mon 30/10/17 14:15
Fulton G20
Mathematics Seminar
Dr. Tadahiro Oh (University of Edinburgh)
(Themes: Partial Differential Equations)
Mon 06/11/17 14:15
Fulton G20
Mathematics Seminar
Dr. Mark Wilkinson (Heriot-Watt University)
(Themes: Partial Differential Equations)
Mon 13/11/17 14:15
Fulton G20
Mathematics Seminar
Dr. Björn Stinner (University of Warwick)
(Themes: Numerical Analysis)
Mon 20/11/17 14:15
Fulton G20
Mathematics Seminar
Dr. Kris van der Zee (University of Nottingham)
(Themes: Numerical Analysis)
Mon 15/01/18 14:15
Fulton G20
Mathematics Seminar
Dr. Kostas Zygalakis (University of Edinburgh)
(Themes: Mathematical Biology, Stochastic Dynamics)
Mon 22/01/18 14:15
Fulton G20
Mathematics Seminar
Prof. Georgios Akrivis (University of Ioannina)
(Themes: Numerical Analysis)
Mon 29/01/18 14:15
Fulton G20
Mathematics Seminar
Dr. Peter Stewart (University of Galsgow)
(Themes: Mathematical Biology, Continuum Mechanics)
Mon 26/03/18 14:00
Fulton G20
Mathematics Seminar
Prof. Miguel Onorato (Università di Torino)
(Themes: Nonlinear waves)