Influence of spacer type on fluid dynamics of 7-rod fuel assembly

Authors: Markov P.V., Solonin V.I. Published: 11.06.2013
Published in issue: #1(90)/2013  


Category: Power-generating and Transport Machine Building  
Keywords: fast fission reactors, spacing of fuel rods, fuel rods, computational fluid dynamics, subchannel transfer

The numerical simulation of fluid flow in 7-rod fuel assemblies is performed. The fuel rods are spaced by twisted wire wrap or four-rib wrap. Data on the coolant flow structure that determines the subchannel transfer intensity and hydraulic characteristics of the assemblies are obtained. The agreement of results of physical and numerical simulations is shown.


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