Hi All,
We have a really great seminar at Midday today in Huxley. I hope to see you all there!
David
"Mixed finite Element methods for wave equations"
13th June 2014, 12-13, 130 Huxley.
Dr Robert Kirby, Department of Mathematics, Baylor University, USA
Abstract: Wave equations model many important applications, such as acoustics and oceanic tides. Mixed finite element methods discretize the conservative first-order form of such equations and preserve important mathematical and physical structure. I will begin by surveying some of the basic features of these discretizations. Then, I will present new semi discrete energy estimates for linear tide models.
These estimates give long-term stability and, in the absence of forcing terms, give exponential decay of solution profiles to a steady, solenoidal field. However, these results still leave important practical details related to algorithms and software open, such as time-stepping and enabling the right kinds of operations efficiently. I will conclude by surveying some of the challenges that thus presented to software tools such as FEniCS and Firedrake.
http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/naturalsciences/mathematics/ammp/eventssummary/event_3-6-2014-16-29-8
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