The 6th Nektar++ Workshop 2022

Dates: 13-15th September 2022

Location: Imperial College London, Exhibition RoadLondonSW7 2BXObjective: The 6th annual Nektar++ Workshop will bring together developers and users of all experiences to hear about new and future developments in the Nektar++ spectral/hp element framework and the exciting science and engineering being undertaken with the code.The three days will include a comprehensive programme of talks and a poster session. The workshop will be run primarily as an in-person event, but the talks will be streamed online. It is hoped we can offer a limited number of remote presentations for those unable to travel.

Schedule: The schedule will appear below closer to the workshop dates.

Cost: The workshop is free to attend. For those who wish to join the workshop dinner, we will ask individual attendees to pay for their meal.

Registration for the workshop is now available at: https://www.eventbrite.co.uk/e/385996896107/

Further information: https://www.nektar.info/community/workshops/nektar-workshop-2022/

The UK Turbulence consortium

The UK Turbulence Consortium is a group of academics and researchers from across 21 UK institutions, committed to undertaking high quality, world leading turbulence simulation and scientific research. The consortium uses high performance computing systems to investigate fundamental aspects of turbulence problems using numerical simulations and how to manipulate them to the benefit of society.
Watch now: https://www.youtube.com/watch?v=nFY3UnVg-0w

 

Aerodynamics & Control Seminars: Prof Patrick Farrell on Computing multiple solutions of PDEs with deflation

We are pleased to announce that Prof Patrick Farrell will give a departmental seminar in the Aeronautics Department of Imperial College London. The seminar will be streamed online.

Abstract: Computing the distinct solutions uu of an equation f(u,λ)=0f(u, \lambda) = 0 as a parameter λ∈R\lambda \in \mathbb{R} is varied is a central task in applied mathematics and engineering. The solutions are captured in a bifurcation diagram, plotting (some functional of) uu as a function of λ\lambda. In this talk I will present a useful idea, deflation, for this task.

Deflation has three main advantages. First, it is capable of computing disconnected bifurcation diagrams; previous algorithms only aimed to compute that part of the bifurcation diagram continuously connected to the initial data. Second, its implementation is very simple: it only requires a minor modification to an existing Newton-based solver. Third, it can scale to very large discretisations if a good preconditioner is available; no auxiliary problems must be solved.

We will present applications to hyperelastic structures, liquid crystals, and Bose-Einstein condensates, and discuss how PDE-constrained optimisation problems may be solved to design systems with certain bifurcation properties.

Former PRISM Researcher, Dr Mohsen Lahooti, has been awarded a lectureship at Newcastle University.

We are deligthed to anncounce that Dr Mohsen Lahooti has been awarded a lectureship position at Newcastle University. He has been underpinned by PRISM funds during his time at Imperial College London.

São Paulo Excellence Chair (SPEC) project – a joint initiative of the Research Centre for Gas Innovation at University of São Paulo and the Sustainable Gas Institute at Imperial College London

This project proposes to develop into a centre of excellence in FC research by  tapping into world-class researchers from both UK and Brazil. By starting the project with  state-of-the-art knowledge and a diversity of points of view, a fundamental goal of this SPEC  is to bring about a multiscale modelling-driven perspective into the now mature Brazilian FC community and share this knowledge, and the advances obtained through it, through the  multi- and transdisciplinarity of the RCGI. Seeing as how the traditional FC community has yet to deliver on critical components of a practical FC device, this project reaches out to leaders in research subjects that are cornerstones of FC technology, viz., quantum and
molecular mechanics, meso and macroscopic transport phenomena, and electrocatalysis.
These are coupled together via energetic and innovative young researchers, and a modellingdriven approach backed by advanced experimental techniques towards validation of multiscale models of FC devices. Thus, this São Paulo Excellence Chair (SPEC) aims at providing the state of São Paulo with a research nucleus in FCs through the participation of  Professors Nigel Brandon, Spencer Sherwin, Erich Muller and Anthony Kucernak, who are  world leading researchers in their respective fields. Tackling core and applied sciences, this SPEC advances on FC technologies as viable options to Brazil, where (bio)methane and bioethanol evolve to be important players in its future energy scenario. The proposed research hub is a joint initiative of leading institutions within the framework of the Research Centre for Gas Innovation (RCGI), at USP, and its paired institution, the Sustainable Gas
Institute (SGI), at Imperial College London (IC).

Spectral/hp element methods for flow modelling using Nektar++

Host: Computer Physics Communications
Date: Tuesday, May 10, 2022 4:00 PM (Europe/London)
Recording from the event is available on this page

 

Abstract:

Nektar++ is an open-source framework that provides a flexible, high-performance and scalable platform for the development of solvers for partial differential equations using the high-order spectral/hp element method. In particular, Nektar++ aims to overcome the complex implementation challenges that are often associated with high-order methods, thereby allowing them to be more readily used in a wide range of application areas. In this presentation we will first provide some motivation behind the spectral/hp element method and the development of Nektar++. We will then provide some background on the code design and finally show some of the more challenging applications areas we have been tackling.

The presentation will be given by three of the four team leaders of the project namely, Spencer Sherwin, Chris Cantwell and David Moxey.

References:
  • 1. D. Moxey et al. (2020) Nektar++: Enhancing the capability and application of high-fidelity spectral/hp element methods. Computer Physics Communications, 249
  • 2. C. Cantwell et al. (2015) Nektar++: An open-source spectral/hp element framework. Computer Physics Communications, 192

 

Congratulations to Dr Cohen on receiving grant on Understanding and Nurturing an Integrated Vision for Education in RSE and HPC (UNIVERSE-HPC)

Congratulations to PRISM’s Dr Cohen who was jointly awarded an EPSRC grant, led by Neil Chue Hong from the University of Edinburgh – Understanding and Nurturing an Integrated Vision for Education in RSE and HPC (UNIVERSE-HPC).  The grant EP/W035731/1 is funded by EPSRC. The project is led by EPCC, University of Edinburgh and is a collaboration between University of Edinburgh, University of Oxford, Imperial College London and University of Southampton.

It focuses on developing a training curriculum framework that will support Research Software Engineers (RSEs) specialising in High Performance Computing and Exascale technologies in developing the skills necessary to undertake the next generation of data- and compute-intensive research. This will be achieved through a combination of developing and collating training materials and a range of community-building activities. The outputs will also support the development of a professional Masters programme focusing on RSE and HPC skills and technologies.

 

Academic Visitors Scheme

PRISM team value academic visits highly; they help us to build a vibrant, internationally diverse and exciting research culture for our research community. PRISM’s Academic Visitors can be involved in several activities during their stay. This includes collaborating with members of staff in research projects, exchanging knowledge or experience, holding academic discussions, observing teaching practices, and exploring opportunities for future joint projects.

This Academic Year PRISM will host the following Academic Visitors

PRISM Report (May 2020 – December 2021)

We are delighted to share the PRISM Report that summarises the work completed between May 2020 – December 2021. Throughout this challenging period, we have continued to find new and innovative ways of working and collaborating. Virtually overnight we found new ways of working to enable us to continue to support research communities on the national and international level in order to achieve PRISM’s goals. We hope you enjoy reading it.

 

 

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