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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

Study of natural circulation in a VHTR after a LOFA using different turbulence models

pages 2389-2400
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2460
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Краткое описание

Natural convection currents in the core are anticipated in the event of the failure of the gas circulator in a prismatic gas-cooled very high temperature reactor (VHTR) The paths that the helium coolant takes in forming natural circulation loops are of interest. In the present study, the potential occurrence of natural circulation is demonstrated using computational fluid dynamic (CFD) calculations with different turbulence models as well as laminar flow. Multiple flow paths for circulating flow are shown for the several cases investigated.

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