Reduced-resolution RANS approach to grid spacer fuel assemblies

Akshat Mathur,Heleen Uitslag-Doolaard,Ferry Roelofs

Nuclear Engineering and Design（2020）

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摘要

•Reduced-resolution CFD modelling of grid-spaced fuel assemblies is considered.•A resolution sensitivity study is performed for unblocked flow condition.•Reduced-resolution scheme is selected with a maximum temperature difference of 4%.•Validation is presented using experimental data.•Approach is extended to reactor-scale 127-pin fuel assembly.

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关键词

Grid spacers,Flow blockage,Reduced order RANS,Reduced resolution

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