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THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
September, 24-27, 2012, Palermo, Italy

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal


ISBN Print: 978-1-56700-302-4

ISSN: 2377-2816

Dissolution of a light gas stratification in a safety containment model: computational study using the scale-adaptive k-ω-SST model of turbulence

pages 1891-1905
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1930
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RÉSUMÉ

The present work is concerned with numerical computations of the process of entrainment of a lower-density gas into a higher-density gas in the geometry of safety containment as encountered in nuclear engineering. Containment configurations differing in terms of the ratio of the buoyant to inertial forces (gradient Richardson number), molar fraction of the lower-density gas, erosion velocity and forced-convection velocity were considered. Turbulence models applied represent an eddy-resolving formulation adopted in line with the SAS (Scale-Adaptive Simulation) version of the k-ω-SST model.

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