A comprehensive review of numerical and experimental research on the thermal-hydraulics of two-phase flows in vertical rod bundles

Taş, Sibel

doi:10.1016/j.ijheatmasstransfer.2023.125053

International Journal of Heat and Mass Transfer

2024

DOI: 10.1016/j.ijheatmasstransfer.2023.125053

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A comprehensive review of numerical and experimental research on the thermal-hydraulics of two-phase flows in vertical rod bundles

Sibel Taş

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2024

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Cited by 3 publications

References 114 publications

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Local characteristics of bubbly flow in rods assembly 3 × 3

Vorobyev,

Kashinsky

2024

International Journal of Heat and Mass Transfer

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Local characteristics of bubbly flow in rods assembly 3 × 3

Vorobyev,

Kashinsky

2024

International Journal of Heat and Mass Transfer

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Investigation of thermal-hydraulic performance of circular, elliptical & mixed circular-elliptical tube bundles for two-phase cross-flow boiling

Moharana,

Joshi,

Bhattacharya

et al. 2024

International Journal of Heat and Mass Transfer

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Experimental and Numerical Study on the Characteristics of Bubble Motion in a Narrow Channel

Tang,

Wang,

Liu

et al. 2024

JNE

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Plate fuel elements, known for their compact structure and efficient cooling, are commonly used in the core of nuclear reactors. In these reactors, coolant channels are designed as rectangular narrow slits. Bubble behavior in narrow channels differs significantly from that in conventional channels. This paper investigates the vertical rise of bubbles in narrow slit channels. A gas–liquid two-phase flow experimental rig was constructed using transparent acrylic boards. A high-speed camera captured the bubble formation process during gas injection, and code implemented in Matlab was used to process the images. Numerical simulations were conducted with CFD software under identical conditions and compared with the experimental results, showing a good agreement. The results show that the experimental and simulated bubble movement velocities are in good agreement. In the experiments of this paper, when the width of the narrow gap is below 3 mm, the sidewalls exert a pronounced influence on the dynamics of bubble rise, notably altering both the velocity profile and the trajectory of the bubbles’ ascent. As the gas injection flow rate gradually increases, the bubble rising speed and trajectory change from regular to oscillatory patterns.

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A comprehensive review of numerical and experimental research on the thermal-hydraulics of two-phase flows in vertical rod bundles

Cited by 3 publications

References 114 publications

Local characteristics of bubbly flow in rods assembly 3 × 3

Local characteristics of bubbly flow in rods assembly 3 × 3

Investigation of thermal-hydraulic performance of circular, elliptical & mixed circular-elliptical tube bundles for two-phase cross-flow boiling

Experimental and Numerical Study on the Characteristics of Bubble Motion in a Narrow Channel

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