Measuring and investigating environmental flows

Wednesday 16 October 2019 - 14:00 to 15:00
NOC Liverpool - Nicholson Lecture Theatre (University of Liverpool).
Dr. Jonny Higham (SoES-University of Liverpool)

Environmental flows are all around us. Whether it be urban flows, river flows, oceanic flows, or even sediment flows. The main connection between all of these flows is, whilst we might be able to describe them at any given moment from experimental data, we can't often predict them... 

The seminar will be split into two sections. The first section will describe a new experimental measurement technique based on the Lucas Kanade solutions of the Optical Flow equations developed for tracking oceanic wave flows on a smart-phone. The second section will focus on the use of modal decomposition techniques, specifically the Proper Orthogonal Decomposition and the Dynamic Mode Decomposition. In this section it will be shown how using these statistically driven methods it is possible to unravel interweaved superimposed complex flow features, investigate their associated dynamics, understand their scaling relationship and perhaps even create models to predict future events…


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