Inscrição na biblioteca: Guest

ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

NATURAL AND MIXED CONVECTION IN ROD ARRAYS

Get access (open in a dialog) DOI: 10.1615/IHTC10.1880
pages 269-280

Resumo

Natural and mixed convection through rod-bundle geometries have been modelled considering symmetry sectors or subchannels. Both vertical and horizontal bundles have been considered. Salient results are well corroborated by experiments. Whereas the buoyancy effects in a vertical bundle can be summarised as supporting or opposing the axial flow, the effects cause secondary flows in the horizontal configuration. Bundle average experimental friction factor values in forced convection are better explained through a porous medium model. The porous medium parameters so derived also yield quantitative corroborations of the flow through vertical bundles induced solely by buoyancy. Salient findings are reviewed in this paper.