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June 11, 2026Transactions of the Korean Society of Mechanical Engineers B

Improved Quality to Void-Fraction Model Predicting Two-Phase Natural Convection in Downward-Heated Inclined Channel

Byeonghee Lee Seokgyu Jeong Jun-young Kang

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Key Points

This research aims to enhance the prediction of flow rate and exit void fraction in downward-heated inclined channels during natural convection phenomena.
Analysis of experimental results using existing models to assess flow rate and exit void fraction.
Development of an improved steam quality-bubble fraction model for better predictions.
The improved model provided more accurate predictions of natural convection flow rates compared to existing models.
Enhanced prediction of exit void fractions was achieved using the newly developed methodology.

Implication

Study improved void-fraction predictions in two-phase natural convection, indicating enhanced cooling in core catchers.

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Cite This Study

Lee et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf32afaef96ed7f0559d9 https://doi.org/10.3795/ksme-b.2026.50.6.317

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