Research interests and technical skills
Jonathan Shimwell
To perform automated parametric multiphysics analysis of breeder blanket designs with an aim of optimising the design.
Objective
To perform automated parametric multiphysics analysis of breeder blanket designs with an aim of optimising the design.
Selection of design parameters
Parametric CAD construction
Neutronics simulation for TBR and EM
Converstion to unstructured mesh
Neutronics simulation for volumetric heating
Converstion to engineering mesh
Simulations to find stress and temperature
Evaluate design
Converstion to CGS
Interpolate performance & design sensitivity
Demonstration parameter study
Interpolation of results
Li4SiO4 with 60% 6Li and Be
Tritium production
Li4SiO4 at 60% 6Li enrichment with Be
Procedure for obtaining volumetric heating
- Neutron and photon heating simulated and results passed to engineering codes
- Parametric CAD models created using Python scripts and automatically converted to neutronics models
- Unstructured mesh applied to the geometry
Automated CAD models for different blanket geometries
HCLL blanket design showing cooling channels in the first wall
Automated hex and conformal tet meshing
Neutronics mesh
Engineering mesh
Data mapping from hex to tet mesh
Neutronics mesh simulation results
Engineering mesh interpolated values
Meshing
Fully automated hex meshing of the geometry to abaques format for use with MCNP 6 unstructured mesh
Volumetric heating
Heating values obtained on unstructured mesh that conforms to material boundaries.
y
Volumetric heating
Li4SiO4
Be12Ti
Component | Be12Ti | Be |
---|---|---|
Lithium ceramic | 15.9 | 17.2 |
Eurofer first wall | 6.2 | 5.8 |
Tungsten armour | 28.1 | 26.4 |
Neutron multiplier | 4.8 | 5.0 |
Heating W/cm3
with 60% 6Li enrichment
Automatically identifying regions
First wall heat flux
Coolant outlet
Coolant inlet
Current work
- Changing software used for meshing and neutronics simulations to avoid licensed software.
- Moving simulations to the cloud. This will allow high throughput, high performance and simulation on demand.
Parametric DEMO reactor
18 coils
- Magnetic equilibrium solved
- Plasma ripple kept below limit
- Model includes
- poloidal field coils
- toroidal field coils
- gravity supports
- intercoil connections
16 coils
- detailed breeder blankets
- detailed breeder blankets
Produced using an early
version of Nova by S McIntosh
Parametric DEMO reactor
Produced Nova by S McIntosh
Parametric DEMO source
Source points generated using
Parametric Serpent source routine
by Alex burns
Automated Neutronics analysis in MCNP, Serpent and Fispact
Conclusion
Design user interfaces and regularly carries out data analysis
Automatic processing and getting started with NOSQL databases
Ubuntu, Linux, Virtual machines and Amazon Cloud computing
A track record of software development in large scientific projects using python and web technologies.
Flask, nginx, python, HTML5, JavaScript, JQuery and AngularJS
Good communication skills, presentation awards and languages
Advanced skills in neutronics analysis and nuclear physics
overview of research progress
By Jonathan Shimwell
overview of research progress
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