Conference Proceedings Paper
Subcooled Flow Boiling Experiment and Simulation for a Virtual Reactor
NURETH-14 - 2011 September 25-30
Masahiro Kawaji (City College of New York)
Randy Samaroo (City College of New York)
Joseph Kreynin (City College of New York)
Taehun Lee (City College of New York)
Sanjoy Banerjee (City College of New York)
Subcooled flow boiling experiments and numerical simulations using a Lattice Boltzmann model will
be performed at City College of New York as part of the DOE Nuclear HUB project, Consortium for
Advanced Simulation of Light Water Reactors (CASL). The experiments being performed include pool
boiling from a platinum wire, subcooled flow boiling in a vertical tube and single air bubble injection
into a turbulent water stream. Preliminary experiments have been performed to measure the bubble
size, shape and motion in an adiabatic experiment involving air bubble injection into water flowing in a
vertical annulus, as well as PIV measurements of liquid flow field in a subcooled flow boiling
experiment. An advanced thermal Finite Element Lattice Boltzmann Model is being developed to
predict the pool and flow boiling experiments. After the validation of the code, improved constitutive
relations for subcooled flow boiling will be developed for use in 3-D CFD models. The present work is
expected to contribute to the development of a multi-scale, multi-physics model of a PWR in the CASL
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