A Radiation-Hydrodynamic ALE Code for Laser Fusion Energy

Lead Research Organisation: University of Warwick
Department Name: Physics

Abstract

Fusion energy has promised clean, secure energy for many years and important advances are expected in the next couple of years from the US National Ignition Facility. If the UK is to play a significant role in a subsequent international collaboration for an Inertial Fusion Energy demonstrator we need the ability to make independent target designs and assessments.A key component of this which has been lacking in the UK academic area is a multi-dimensional computer model which follows the hydrodynamic evolution of the laser targets through absorption of the laser energy, ablation, implosion and thermonuclear burn. RALF (Radiation-hydrodynamics using ALE methods for Fusion) will lay the foundation for this capability in a two year project which can then grow quickly if required for participation in a major project. RALF is designed to be a scalable parallel computer model capable of being run in 3D on large High Performance Computing (HPC) installations. RALF is a collaboration between the University of Warwick and Imperial College and continues an area of collaboration begun with the EPOCH code and the Collaborative Computational Project in Plasma Physics (CCPP). RALF will benefit from close links and advice from AWE Aldermaston where there is a growing activity in Inertial Fusion Energy for power production.

Publications

10 25 50
 
Description An approach for including the MHD equations into an ALE code based on the Cauchy solution was shown to work for the standard MHD shock tests. This paved the way for the more advanced version of the ALE code (Odin) currently (2017) under development from another EPSRC funded software project.
Exploitation Route The key results have been prepared as an introductory manual for the Odin code and this has been used as the basis for ongoing Odin development by the UK laser-plasma community.
Sectors Education,Energy

 
Description A radiation-hydrodynamic ALE code for laser fusion energy
Amount £255,109 (GBP)
Funding ID EP/I029117/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Public
Country United Kingdom
Start 10/2011 
End 09/2013
 
Description CCP Flagship Project
Amount £380,448 (GBP)
Funding ID EP/M011534/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Public
Country United Kingdom
Start 04/2015 
End 03/2018
 
Description Centre for Computational Plasma Physics
Amount £326,643 (GBP)
Funding ID Contract V30286915 
Organisation Atomic Weapons Establishment 
Sector Private
Country United Kingdom
Start 07/2014 
End 06/2017
 
Description Centre for Computational Plasma Physics
Amount £264,129 (GBP)
Organisation Atomic Weapons Establishment 
Sector Private
Country United Kingdom
Start 10/2017 
End 09/2022
 
Description H2020-PROTEC-2014
Amount € 386,531 (EUR)
Funding ID 637302 - PROGRESS 
Organisation European Commission 
Sector Public
Country European Union (EU)
Start 01/2015 
End 12/2017
 
Description Plasma Physics HEC Consortia
Amount £279,000 (GBP)
Funding ID EP/L000237/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Public
Country United Kingdom
Start 05/2013 
End 05/2018
 
Description The Plasma-CCP Network
Amount £125,995 (GBP)
Funding ID EP/M022463/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Public
Country United Kingdom
Start 07/2015 
End 06/2020
 
Title Odin 
Description Odin is a 2D r-z geometry multi-material MHD ALE code. This is maintained on a private gitlab server along with detailed documentation. 
Type Of Technology Software 
Year Produced 2017 
Impact This is the first full release of the Odin code but is currently restricted to the development team only. This includes researchers at Exeter, Warwick, Imperial College and York. This release is the first full Odin release which is able to complete simulations of pellet implosion for inertial confinement fusion (ICF). It includes MHD, conduction and a generalised Ohm's law. The ability to begin ICF simulations, albeit with an early release version of the Odin code, is essential for keeping the UK academic community actively involved in international ICF programmes. 
URL https://cfsa-pmw.warwick.ac.uk/Odin/Odin
 
Title Report on basic ALE scheme for MHD in Odin code 
Description The final version of the Odin code developed from this grant, and the report documenting the source code, were the starting point for flow on funding. The software is a 2D r-z ALE code for multi-material MHD. Due to involvement of AWE and possible proliferation issues this software is currently treated as though it were export restricted. 
Type Of Technology Software 
Year Produced 2013 
Impact This project laid the foundation for the new CCP-Flagship project EP/M011534/1. The code improvements under this project have lead to collaborative links with AWE plc and First Light Fusion. The MHD coupling and more advanced integration of PIC codes will be of interest to AWE while First Light fusion have supplied experimental data for validating the Odin code.