Nektar++

King’s College London, London, 13-15th June 2023

About

The 7th 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 as a hybrid event, meaning that attendees can be either in-person or remote. We do however encourage attendance in-person if possible!

Schedule

A more detailed schedule will be available nearer the event. Following the theme of previous workshops, the event will follow a lunch-to-lunch schedule below (times TBC):

Day 1 (13th June)

• 12:00 – 13:00 Arrival, coffee, lunch (room K2.40)
• 13:00 – 15:00 Talk session 1: Nektar++ updates and future developments (room K2.31)
  • 13:00: Introduction & welcome (David Moxey, King’s College London)
  • 13:10: Updates and progress (Spencer Sherwin, Imperial College London)
  • 13:30: Outreach and development practices (Mohsen Lahooti, Newcastle University)
  • 13:50: Redesign & architecture development (Chris Cantwell, Imperial College London)
  • 14:10: Discussion panel: code acceptability/reproducibility, TRL, and SIAM software classification (Mike Kirby, University of Utah).
• 15:00 – 15:30 Refreshments (room K2.40)
• 15:30 – 17:00 Talk session 2: hydrodynamic stability (room K2.31)
  • 15:30 – 16:00: Stanisław Gepner (Warsaw University of Technology): Continuation methods and turning on bifurcations with Nektar++ (in-person)
  • 16:00 – 16:30: Abhishek Kumar (Coventry University): Optimal inflow perturbation for the mixed baroclinic convection (in-person)
  • 16:30 – 17:00: Jakub Fabisiak (Warsaw University of Technology): Quantification of mixing due to hydrodynamic instability invoked kinematics in corrugated channel flows (in-person)
• 18:00 – Drinks @ Lyceum Tavern

Day 2 (14th June)

• 08:30 – 09:00 Arrival coffee (room K2.40)
• 09:00 – 10:30 Talk session 3: Applications (room K2.31)
  • 09:00 – 09:30: Mohsen Lahooti (Newcastle University): Wake and performance of a propeller under forced vibration (in-person)
  • 09:30 – 10:00: Ed Threlfall (UK Atomic Energy Authority): ExCALIBUR Project NEPTUNE: Nektar++ for fusion plasma simulation (online)
  • 10:00 – 10:30: Nikesh Yadav (Warsaw University of Technology): Deep learning-based prediction of flow behind circular cylinders using solutions from Nektar++ solver (online)
• 10:30 – 11:00 Refreshments (room K2.40)
• 11:00 – 12:30 Talk session 4: Turbomachinery (room K2.31)
  • 11:00 – 11:30: Aidan Forknall (Loughborough University): Implementation of a Combustion Module within the Nektar++ Framework (in-person)
  • 11:30 – 12:00: Guglielmo Vivarelli (Imperial College London): A Nektar++ Study of the High-Pressure Turbine LS89 (in-person)
  • 12:00 – 12:30: João Isler (Imperial College London): Turbomachinery applications using Nektar++ (in-person)
• 12:30 – 13:45 Lunch & poster session (room K2.40)
  • Hydrodynamic instabilities in a meandering channel (S. W. Gepner and J. M. Floryan)
  • Stability of Flow Due to a Stretching Flat Plate (Niall Hanevy, Paul Griffiths, Abhishek Kumar)
  • Low-Reynolds number mixing and hydrodynamic instability in the presence of non-symmetric wall corrugation (J. Fabisiak and S. W. Gepner)
• 13:45 – 14:45 Keynote talk: Prof. Martin Kronbichler (University of Augsburg) (room K2.31)
  Efficient Implementations of High-Order Finite Elements with the deal.II Library
• 14:45 – 15:30 Refreshments (room K2.40)
• 15:30 – 17:00 Talk session 5: CFD (room K2.31)
  • 15:30 – 16:00: Sehun Chun (Yonsei University): Nektar++ for Computational Neuroscience Projects: Progress, issues, and future (online)
  • 16:00 – 16:30: Chi Hin Chan (Imperial College London): Pathways to spiral-defect chaos (in-person)
  • 16:30 – 17:00: Ganlin Lyu (Imperial College London): Stable Riemann inflow boundary conditions for DG compressible flow simulations (in-person)
• 19:00 – Workshop dinner: Côte Brasserie Covent Garden, 17-21 Tavistock Street, London, WC2E 7PA

Day 3 (15th June)

• 08:30 – 09:00 Arrival coffee (room K2.40)
• 09:00 – 10:30 Talk session 6: Numerics for CFD (room K2.31)
  • 09:00 – 09:30: Henrik Wustenberg (Imperial College London) Title TBC (in-person)
  • 09:30 – 10:00: Jacques Xing (King’s College London): Implementation of the Parareal and PFASST Algorithms in Nektar++ (in-person)
  • 10:00 – 10:30: Jakub Gałecki (Warsaw University of Technology): Is the grass greener on the other side? Adventures with the least-squares finite element method (in-person)
• 10:30 – 11:00 Refreshments (room K2.40)
• 11:00 – 12:30 Talk session 7: Mesh generation and implementation (room K2.31)
  • 11:00 – 11:30: Kaloyan Kirilov (Imperial College London): Recent advances in NekMesh – mesh generation an adaptation (in-person)
  • 11:30 – 12:00: Allen Sanderson (University of Utah): Exploiting heterogeneous systems – GPUs (in-person)
  • 12:00 – 12:30: Mike Kirby (University of Utah): Non-uniform Knot (NUK) SIAC Post-processing of Flow Fields Produced Through Unstructured Grid Adaptation and Optimization (in-person)
• 12:30 – 13:30 Lunch (room K2.40)
• 13:30: Close

Location

The workshop will be held in the King’s Building, located on the Strand Campus of King’s College London, with lectures taking place in the Nash Lecture theatre (K2.31).

Getting to the campus

The KCL campus is located in central London and is served by a number of underground stations:

• Temple (Circle & District line) is the closest with, a 5 minute walk from campus
• Covent Garden (Piccadilly line), around 10 minute walk.
• Charing Cross (Northern line), around 10 minute walk.
• Embankment (Circle & District, Northern and Bakerloo lines), around 12-13 minute walk.

Getting to the rooms

Access to the King’s campus is via the main reception in the Strand Building, located on the Strand. After entering the reception, you will need to sign in at the reception desk. From the foyer, take the staircase on the left-hand side or the lifts up to the second floor. Turn left into the King’s building, and the lecture hall is on the right as you enter the King’s building. Signs will be posted to help you find the rooms from the reception area.

Cost

The workshop is free to attend. Lunch and refreshments will be provided between the sessions. There will be a workshop dinner on 15th June, but self-payment will be required.

Registration

Registration is now open and available at the following link: https://cassyni.com/s/nektar-workshop-2023