[KSCI] Korea Science Citation Index Service

Flow and Convective Heat Transfer Analysis Using RANS for A Wire-Wrapped Fuel Assembly

Ahmad, Imteyaz (Department of Mechanical Engineering, Inha University)
Kim, Kwang-Yong (Department of Mechanical Engineering, Inha University)

Publication Information

Journal of Mechanical Science and Technology / v.20, no.9, 2006 , pp. 1514-1524 More about this Journal

Abstract

This work presents the three-dimensional analysis of flow and heat transfer performed for a wire-wrapped fuel assembly of liquid metal reactor using Reynolds-averaged Wavier-Stokes analysis in conjunction with 557 model as a turbulence closure. The whole fuel assembly has been analyzed for one period of the wire-spacer using periodic boundary conditions at inlet and outlet of the calculation domain. Three different assemblies, two 7-pin wire-spacer fuel assemblies and one bare rod bundle, apart from the pressure drop calculations for a 19-pin case, have been analyzed. Individual as well as a comparative analysis of the flow field and heat transfer have been discussed. Also, discussed is the position of hot spots observed in the wire-spacer fuel assembly. The flow field in the subchannels of a bare rod bundle and a wire-spacer fuel assembly is found to be different. A directional temperature gradient is found to exist in the subchannels of a wire-spacer fuel assembly Local Nusselt number in the subchannels of wire-spacer fuel assemblies is found to vary according to the wire-wrap position while in case of bare rod bundle, it's found to be constant.

Keywords

Wire-Spacer; Liquid Metal Reactor; RANS Analysis; Heat Transfer; Fuel Assembly;

Citations & Related Records

Times Cited By KSCI : 1 (Citation Analysis)
Times Cited By Web Of Science : 6 (Related Records In Web of Science)
Times Cited By SCOPUS : 9

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1	/ Journal of Nuclear Science and Technology
2	/ Transactions of the Korean Society of Mechanical Engineers, B
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