DNS of turbulent mixed convection over a vertical backward-facing step for lead-bismuth eutectic

Pinghui Zhao,Chaozheng Wang, Zhihao Ge,Jiayin Zhu,Jiaming Liu,Minyou Ye

International Journal of Heat and Mass Transfer（2018）

引用 14|浏览7

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摘要

•DNS of LBE flow over backward-facing step is conducted to study buoyancy impact.•Statistics like velocity, temperature, Reynolds stress and heat flux are discussed.•Buoyancy has substantially altered the flow field for LBE flow at moderateRi.•Recirculation zone decreases and heat transfer is improved in buoyancy-aided flow.•Recirculation zone largely increases and heat transfer is weakened in opposed flow.

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关键词

DNS,Turbulent mixed convection,Backward-facing step,Low Prandtl number,Buoyancy

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