Scope:
The purpose of the Workshop is to provide a platform for
presentation of the current state-of-the-art in the field
of two-phase flows and heat transfer in nuclear fuel
assemblies. Both experimental and numerical research and
development will be included.
- In the numerical part the focus will be on the
Computational Fluid Dynamics (CFD) approach used for the
prediction of velocity, turbulence, void fraction and wall
temperature in the fuel assembly geometry.
- In the experimental part the focus will be on
measurement methods which provide data suitable for
validation of the CFD codes, that is measurements of local
parameters like flow velocity, turbulence, void fraction,
interfacial area density, etc., using methods like laser-
doppler velocimetry, hot-film/wire anemometry, particle
image velocimetry, and others, which are suitable for
complex geometries.
Topics of particular interest:
- Subcooled boiling (including, but not limited to:
conjugate heat transfer, bubble formation and departure,
bubble migration and dynamics, interfacial area
concentration, DNB mechanisms, two-phase law of the wall)
- Annular two-phase flow (including, but not limited
to: evaporating liquid film, drop entrainment and
deposition rates, drop size and dynamics in turbulent
stream)
- Post-dryout (PDO) heat transfer (including, but
not limited to: vapor-droplet heat transfer, wall vapor
and wall-droplets heat transfer, influence of obstacles on
PDO heat transfer)
- Turbulence (including, but not limited to: single-
phase flow turbulence in fuel assemblies, turbulence in
disperse bubbly flow, turbulence in disperse droplet flow)
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