Workshop 2015

BOUT++ workshop 2015

Date: 14th-16th September 2015

Location: Fusion Learning Studio, University of York, UK YO10 5DQ

The BOUT++ code is a flexible tool for the simulation of plasma fluid equations, primarily focussed on tokamak edge simulations. This workshop will combine hands-on training in using BOUT++ with lectures on tokamak edge physics, numerical simulation techniques, and related topics. All those with an interest in using BOUT++ or in tokamak edge simulation, are invited to attend. There is no fee.

The aim of this workshop is (1) to prepare researchers to use and further develop the BOUT++ code for edge turbulence, transport, and ELM simulations of magnetic fusion devices; and (2) to promote effective collaboration within the BOUT++ community and beyond.

Registration: Anyone interested in attending should contact Ben Dudson ( by August 31st.


Monday 14th
Session 1 (Introduction)
  • 12:30 Arrival and coffee
  • 1:00 pm Introduction and overview (Ben Dudson)
  • 1:30 pm Overview of edge and divertor modelling at CCFE (Nick Walkden)
  • 2:00 pm Edge modelling at DTU (Jens Madsen)
  • 2:30 pm Linear plasma device experiment at York (Kieran Gibson / Hannah Willett)
  • 3:00 : Coffee
Session 2:
Evening: Workshop dinner
Tuesday 15th September
Session 3: Blob and edge turbulence models
  • 9:00 : 3D blob simulations (Luke Easy)
  • 9:30 : Progress on FCI scheme with boundaries (Peter Hill)
  • 10:00 : Time steppers: Implicit, explicit, and IMEX (Ben Dudson)
  • 10:30 : Coffee
  • 11:00 : Gyro-fluid model development, benchmarking with GS2 (David Dickinson)
  • 11:30 : Modelling of blobs in X-point geometries (Brendan Shanahan)
  • 12:30 : Lunch and posters
Session 4: Meshes and
  • 1:30 Use of git for version control (P.Hill)
  • 2:00 Non-orthogonal meshes for divertor modelling (Jarrod Leddy)
  • 2:30 Hands-on session: Mesh generation and simulation geometries (Ben Dudson)
  • 3:30 Coffee break
Session 5: Eigenvalue solvers
  • 4:00 Using SLEPc for eigenvalue problems, including hands-on demonstration (David Dickinson)
  • 4:45 Overview of LLNL BOUT++ edge simulations and validations (Xueqiao Xu, remote)
  • 5:30 Finish
Wednesday 16th September
Session 6: Neutrals and divertor modelling
  • 9:00 : Progress on divertor modelling with BOUT++ (Jarrod Leddy, BD)
  • 9:30 : Neutral gas modelling with EIRENE (Samad Mekkaoui)
  • 10:00 : Divertor modelling with DTURB (Nick Walkden)
  • 10:30 : Coffee
  • 11:00 : Discussion: Future plans for BOUT++
  • 11:30 : Two-fluid and MHD modelling of merging magnetic flux ropes in the MAST spherical tokamak (Philippa Browning)
  • 12:30 : Lunch and Finish

Remote connection

Slides will be shared using the FusionTV service (formerly EFDATV) on channel 19.

Video-conference nr. (H.323): 004910097926827 ISDN: +49-30-2541080 or +49-711-6330190 (ConferenceID = 97926827) followed by an # (hash symbol)

Video conference details

If using a H.323 video-conference device, registered to an E.164 compliant gatekeeper, call the E.164 number:


If using a H.323 video-conference device NOT registered to an E.164 compliant gatekeeper (called URI dial), the syntax depends on your vendor as shown below:

ConferenceID = 97926827

  • LifeSize:
  • Mirial:
  • Polycom:
  • Sony:
  • Tandberg:

Further technical details and help can be found here and here


  • Peshwaz Abdoul, University of York
  • David Dickinson, University of York
  • Ben Dudson, University of York
  • Luke Easy, University of York / CCFE
  • Erik Grinaker, University of York
  • Sophia Henneberg, University of York
  • Peter Hill, University of York
  • Jarrod Leddy, University of York
  • Samad Mekkaoui, University of York / Julich
  • Christopher Ridgers, University of York
  • David Scwoeror, Dublin University / CCFE
  • Brendan Shanahan, University of York
  • Siobhan Smith, University of York / CCFE
  • Michail Tzanis, University of York
  • Nick Walkden, CCFE
  • Hannah Willett, University of York
  • Ben Wood, University of York
  • Xinliang Xu, University of York


The University of York has accommodation available, which can be booked through University Rooms. Franklin House is close to the workshop venue (B&B single room £52.80, double £90 per night), whilst James College is a short walk away (single ensuite £34.50). In addition there are many excellent hotels and B&Bs in York, including:

  • Moorgarth Guest House, around £30 per night. Convenient location within 15 minutes walk of town and around 30 minutes walk from the meeting venue. There is a bus stop on Kent street a short walk away which goes directly to Heslington close to the venue (see map).
  • Turnberry House, around £45 per night. In Fulford village, around 25 minutes walk from the meeting venue, and 30 minutes walk from town.
  • The Limes guest house for around £55 per night. Close to Turnberry house, this is also around 30 minutes walk from town and the meeting venue.

More information about hotels in the area can be found on York’s tourist information website.