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The Computing Division Technical Meetings are a platform for

  • presenting Pinboard papers under review for journal or conference publication,
  • inviting speakers who are current or prospective UKAEA collaborators at external organisations,
  • presenting work done in PhD projects funded by or co-supervised by UKAEA,
  • presenting work done during summer placements or other secondments to UKAEA.

 

If you would like to invite a speaker on a topic that would be of interest to one or more Units within the Computing Division, but is not currently collaborating on a UKAEA project, please consider nominating them for a Computing Division Cross-Disciplinary Seminar.

These meetings are normally recorded. Recordings of past meetings can be found here:

CD Technical Meetings Archive on UKAEA Sharepoint

CD Technical Meeting (ML5): Turbulence surrogate models in integrated plasma modelling

→ Europe/London
K1/0/38

K1/0/38
William Hornsby (Plasma Simulation)
Description
Machine Learning, Uncertainty Quantification and Data Science 

 

Speaker: William Hornsby (Plasma Simulation)

Abstract

Plasma micro-turbulence is one of the dominant transport mechanisms of heat from the core of a fusion power plant.  Direct numerical calculation of the micro-instabilities that form turbulence is computationally expensive and is a significant bottleneck in integrated plasma modelling, in which the many physical processes are coupled to predict reactor-level behaviour and to optimise operational scenarios of fusion power plants.

The considerable number of geometric and thermodynamic parameters, the interactions that influence the turbulence, and the resolutions needed to accurately resolve these turbulent modes, makes direct numerical simulation for parameter space exploration computationally extremely challenging. However, this makes it suitable for surrogate modelling, where speed ups of up 105 are possible making rapid scenario development a possibility.   

In this talk the integrated plasma modelling use-case will be introduced as well as the turbulence surrogate modelling efforts at UKAEA, including how the models are integrated into larger workflows.  

Join Meeting Now (Teams)
    • 1
      Talk
      Speaker: William Hornsby (Plasma Simulation)
    • 2
      Q&A
      Speaker: William Hornsby (Plasma Simulation)
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