Numerical simulation of water jet impact on molten material layer

Yakush, S. E.; Sivakov, N. S.

doi:10.1063/5.0163744

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…The results obtained confirm that the developed solver fciFOAM is suitable for the solution of problems involving the interaction of the high-temperature melt with water, the key feature of which is the formation of large volumes of steam when the water boils. More validation results for fciFOAM obtained in different types of melt-water interactions can be found in [25,26].…”

Section: Numerical Implementation and Verificationmentioning

confidence: 99%

“…Three-dimensional simulations are performed, allowing for a more adequate description of phase surface instabilities, fragmentation, etc., and then the two-dimensional simulations [24]. The VOF model's capability of capturing the important features of melt-water interactions was validated in recent works [25,26], where single-droplet steam explosions, as well as melt splashes due to the impact of short-duration water jet on a shallow melt layer, were simulated.…”

Section: Introductionmentioning

confidence: 99%

“…Here, the model [25,26] was applied to a water jet's interaction with a molten pool of heavy metal. Three-dimensional simulations were performed for the conditions of previous experiments [12][13][14], where a water jet was injected in a planar vessel filled with lead-bismuth eutectic alloy; the results obtained are compared with the experimental data.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Modeling of Water Jet Plunging in Molten Heavy Metal Pool

Yakush,

Sivakov,

Melikhov

et al. 2023

Mathematics

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The hydrodynamic and thermal interaction of water with the high-temperature melt of a heavy metal was studied via the Volume-of-Fluid (VOF) method formulated for three immiscible phases (liquid melt, water, and water vapor), with account for phase changes. The VOF method relies on a first-principle description of phase interactions, including drag, heat transfer, and water evaporation, in contrast to multifluid models relying on empirical correlations. The verification of the VOF model implemented in OpenFOAM software was performed by solving one- and two-dimensional reference problems. Water jet penetration into a melt pool was first calculated in two-dimensional problem formulation, and the results were compared with analytical models and empirical correlations available, with emphasis on the effects of jet velocity and diameter. Three-dimensional simulations were performed in geometry, corresponding to known experiments performed in a narrow planar vessel with a semi-circular bottom. The VOF results obtained for water jet impact on molten heavy metal (lead–bismuth eutectic alloy at the temperature 820 K) are here presented for a water temperature of 298 K, jet diameter 6 mm, and jet velocity 6.2 m/s. Development of a cavity filled with a three-phase melt–water–vapor mixture is revealed, including its propagation down to the vessel bottom, with lateral displacement of melt, and subsequent detachment from the bottom due to gravitational settling of melt. The best agreement of predicted cavity depth, velocity, and aspect ratio with experiments (within 10%) was achieved at the stage of downward cavity propagation; at the later stages, the differences increased to about 30%. Adequacy of the numerical mesh containing about 5.6 million cells was demonstrated by comparing the penetration dynamics obtained on a sequence of meshes with the cell size ranging from 180 to 350 µm.

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Section: Numerical Implementation and Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Modeling of Water Jet Plunging in Molten Heavy Metal Pool

Yakush,

Sivakov,

Melikhov

et al. 2023

Mathematics

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Three-phase VOF modeling of water jet – molten metal interaction

Yakush,

Sivakov,

Melikhov

et al. 2024

Nuclear Engineering and Design

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Experimental Study on the Interaction of an Impulse Water Jet with Molten Metal

Yakush

Chashechkin

Ilinykh

et al. 2023

Fluids

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The impingement of a short-duration water jet on a pool of molten Rose’s metal is studied experimentally herein. Short-duration water jet impacting on the free surface of a molten metal pool with a temperature of 300 °C are generated with a pneumatic water delivery system, with two-camera high-speed video registration. A total of 14 experimental series, each containing 5 repeated tests, are performed for a water volume of 0.2–1 mL and a jet impact velocity of 4.1–9.0 m/s. The cavity development in the melt layer is studied, with the main stages described herein. Despite the significantly higher density of melt in comparison with water, the cavity can reach the melt pool bottom; furthermore, its further collapse results in the formation of a central jet rising to the height of a few centimeters. The maximum height of the central jet is shown to depend linearly on the total momentum of the water jet, and a semi-logarithmic correlation is found for the maximum diameter of the cavity. Repeatability analysis is performed within each experimental series, and the relative standard deviation for the melt splash height is shown to be from 8.8% to 26.8%. The effects of the pool depth, the vessel shape, and the water temperature are weaker in the range of the experimental parameters used here.

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Numerical simulation of water jet impact on molten material layer

Cited by 3 publications

References 15 publications

Numerical Modeling of Water Jet Plunging in Molten Heavy Metal Pool

Numerical Modeling of Water Jet Plunging in Molten Heavy Metal Pool

Three-phase VOF modeling of water jet – molten metal interaction

Experimental Study on the Interaction of an Impulse Water Jet with Molten Metal

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