51cg

Abstract: There are three things vital to a good understanding of a system: analysis, simulation, and experiment. Finding agreement between these three might be difficult if a system is very large and complex, if it is very noisy, or if it contains nonsmooth events (like impact, switches, or discontinuous parameters). Obviously a large complex system might...

The annual Engineering Postgraduate Research Symposium presents a snapshot of the work of Postgraduate Research students within the School of Engineering, spanning the diverse fields of Chemical Engineering, Civil Engineering, Electrical and Electronic Engineering, Mechanical Engineering and Petroleum Engineering.

Abstract of the talk: Diffusion and adsorption of gases on solid surfaces are two important, highly correlated process steps which occur in numerous applications such as heterogeneous catalysis, gas storage processes, e.g. in shales, gas separation processes in chemical industry, host-guest systems, e.g. gas hydrates or MOF's, membrane processes, adsorption processes,...

Recently proposed active queue management mechanisms can minimise the time packets spend enqueued at a network bottleneck by deploying shallow buffers with short-term burst tolerance. However, this shallow buffering causes noticeable performance degradation in the throughput for a path delay is higher above typical intra-country levels. Using a less-aggressive backoff...

Environmental Fluid Mechanics (EFM) has emerged at the interfaces of fluid mechanics, hydraulics, hydrology, oceanography, and meteorology to deal with multiple problems involving environmental fluid flows. The talk will briefly introduce EFM and outline the typical problems addressed by this fairly new discipline. Then, a few ‘snapshots’ of EFM will...

by Professor Valerio Cozzani, University of Bologna, Italy

Seminar talk by Ilmar Ferreira Santos, Department of Mechanical Engineering, Technical University of Denmark, Denmark.

Launching material into orbit is a hugely expensive business. But rather than lifting material from the bottom of the Earth's deep gravity well, perhaps we can use material that's already out there.

A group that promotes engineering as a career choice for young people is hosting a key seminar at the 51cg later this month.

In this lecture I will examine nature of subtle phenomenon such grazing bifurcations occurring in non-smooth systems. I will start with linear oscillators undergoing impacts with secondary elastic supports, which have been studied experimentally and analytically for near-grazing conditions [1]. We discovered a narrow band of chaos close to the...