Workpackage I

1
Workpackage IFuel, thermal hydraulics
reactor systemsSimon WalkerWP 1
LeadImperial College
2
Work Package I People

• Investigators
• Simon Walker (Imperial) (WP I Lead)
• Michael Bluck (Imperial)
• Mark Cotton (Manchester)
• Tony Goddard (Imperial)
• Geoff Hewitt (Imperial)
• Dominique Laurence (Manchester)
• Chris Pain (Imperial)
• KNOO PDRAS
• Colin Hale, Nicolas Cinosi, Yacine Addad, J
  Gomes
• KNOO Research Students
• Despoina Chatzikiriakou, Caroline Masson,
  Soleman Maudarboucas, Jessy Zeng, Inam Haq,
  Muhammed Ilyas, Daniel Moriconi, Badreddine
  Belhouachi, Amir Keshmiri, Stefano Rolfo
• Associated Research Students

3
Bluck, Hewitt Walker (Imperial)

• Water reactor design basis accident studies
• (Large break LOCA, re-flood, interactions of
  thermal hydraulics and mechanical deformation of
  the core, droplet-wall heat transfer, fundamental
  rewetting physics)
• Inorganic salt deposits (crud) on PWR fuel
• (Altered heat transfer modes, thermal hydraulic
  and neutronic effects)
• Computational methods development for
  elastodynamic NDT
• (Incorporation of recent fast multipole
  methods into a frequency domain (Helmholz)
  treatment of elastodynamic wave propagation)

4
Laurence Cotton (Manchester)

• Application of advanced CFD to Generation IV
  systems
• (Heat transfer in ceramic fuel structures
  construction of a wall-resolved Large Eddy
  Simulation database for flow parallel to fuel
  rods)
• Validation of Reynolds-Averaged-Navier-Stokes
  turbulence models
• (Exploitation of the LES database for the
  validation of RANS models Cross-cutting with WP4
  - Optimization of fuel/coolant exchanges for
  novel fuel element surfaces)
• Thermal striping in liquid-metal-cooled fast
  reactors
• (Application of the wall-resolved LES treatment
  to wall-jet geometries including conjugate
  fluid/solid heat transfer)

5
Goddard Pain (Imperial)
Coupled fault transient modelling framework for
innovative reactors to develop the general
modelling capability of the unstructured mesh
?FETCH 3D transient FEM-based coupled code in
respect of multiscale reactor physics and
thermal hydraulics together with incorporating
structural interactions into the coupled
framework to interface the within-vessel 3D
capability with whole circuit flow models to
apply the methodology?under ?Work Package 4 to
VHTR and GFR Gen IV and related transient fault
studies to work with the Manchester group in
benchmarking LES models for SFR applications