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ARCCA High Performance Computing Seminar Series

9 April 2013


ARCCA High Performance Computing seminar series

Wednesday 17th April, 4-5pm

0.7, Seminar Room 1, Trevithick Building


The ARCCA High Performance Computing Seminar Series is a series of informal seminars highlighting the variety of research being undertaken on both Raven and Condor. The aim is to showcase the portfolio of computational research being undertaken, providing a forum to share ideas, and best practice as well as fostering new ideas and collaborations.

Programme

16:00 – 16:20
Large-eddy simulations of turbulent flow and scalar transport over rough channel beds
Sandeep Bomminayuni, Thorsten Stoesser Group, School of Engineering.

The study of turbulent flow over rough surfaces is considered highly important in hydraulic engineering and is an active area of research due to the fact that practically all surfaces in open-channel flow can be considered rough. 

In this presentation, details of numerical simulations of turbulent flow over rough channel beds are presented. These high-resolution simulations (with approximately 90 million numerical grid points) clearly demonstrate the importance of large computing clusters for researchers in the area of hydraulic engineering.

 

16:20 – 16:40
Gamma-ray bursts and gravitational waves:  A new way of exploring the universe
Erin Macdonald, Gravitational Waves group, School of Physics.

The field of gravitational wave research is entering an era of advanced detectors. A likely detectable source of gravitational waves is the coalescence of compact objects, such as neutron stars and black holes. It is also thought that the coalescence of neutron stars results in 'short' gamma-ray bursts, a detectable flash of gamma-rays. 

By comparing known gamma-ray burst times to gravitational wave data, we may be able to make the first detection of gravitational waves as well as open up a completely new way of looking at the universe. In this talk, I will describe the methods used to run these searches and the possibility for new science.

 

16:40 – 17:00
Sedimentation in Viscoelastic flows
Ross Kynch, Phillips Group, School of Mathematics.

We consider the sedimentation of a sphere in a viscoelastic fluid and apply the Spectral Element Method (SEM) to solve the Oldroyd B and Giesekus fluid models using a Discontinuous Galerkin (DG) treatment of convection and a elastic-viscous split stress method (DEVSS-G) to provide stabilisation. 

Selected results computed using the PARDISO (Intel MKL library) solver on Raven/Merlin will be presented along with how the cluster was beneficial to our work.

 


Please note that booking is not necessary for this event.