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Volume 13
Issue 19
10.3390/en13195018
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Article

Numerical Simulation of the Solid Particle Sedimentation and Bed Formation Behaviors Using a Hybrid Method

by
Md Abdur Rob Sheikh
1,
Xiaoxing Liu
1,
Tatsuya Matsumoto
1,
Koji Morita
1,*,
Liancheng Guo
2,
Tohru Suzuki
3 and
Kenji Kamiyama
3
1
Department of Applied Quantum Physics & Nuclear Engineering, Kyushu University, Fukuoka 819-0395, Japan
2
Institut für Kern- und Energietechnik, Karlsruher Institut für Technologie, 76344 Eggenstein-Leopoldshafen, Germany
3
Fast Reactor Cycle System R&D Center, Japan Atomic Energy Agency, Ibaraki 311-1393, Japan
*
Author to whom correspondence should be addressed.
Energies 2020, 13(19), 5018; https://doi.org/10.3390/en13195018
Submission received: 1 August 2020 / Revised: 21 September 2020 / Accepted: 21 September 2020 / Published: 24 September 2020
(This article belongs to the Special Issue Engineering Fluid Dynamics 2019-2020)
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Abstract

In the safety analysis of sodium-cooled fast reactors, numerical simulations of various thermal-hydraulic phenomena with multicomponent and multiphase flows in core disruptive accidents (CDAs) are regarded as particularly difficult. In the material relocation phase of CDAs, core debris settle down on a core support structure and/or an in-vessel retention device and form a debris bed. The bed’s shape is crucial for the subsequent relocation of the molten core and heat removal capability as well as re-criticality. In this study, a hybrid numerical simulation method, coupling the multi-fluid model of the three-dimensional fast reactor safety analysis code SIMMER-IV with the discrete element method (DEM), was applied to analyze the sedimentation and bed formation behaviors of core debris. Three-dimensional simulations were performed and compared with results obtained in a series of particle sedimentation experiments. The present simulation predicts the sedimentation behavior of mixed particles with different properties as well as homogeneous particles. The simulation results on bed shapes and particle distribution in the bed agree well with experimental measurements. They demonstrate the practicality of the present hybrid method to solid particle sedimentation and bed formation behaviors of mixed as well as homogeneous particles.
Keywords: hybrid simulation method; multi-fluid model; discrete element method, sedimentation, bed formation hybrid simulation method; multi-fluid model; discrete element method, sedimentation, bed formation

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MDPI and ACS Style

Sheikh, M.A.R.; Liu, X.; Matsumoto, T.; Morita, K.; Guo, L.; Suzuki, T.; Kamiyama, K. Numerical Simulation of the Solid Particle Sedimentation and Bed Formation Behaviors Using a Hybrid Method. Energies 2020, 13, 5018. https://doi.org/10.3390/en13195018

AMA Style

Sheikh MAR, Liu X, Matsumoto T, Morita K, Guo L, Suzuki T, Kamiyama K. Numerical Simulation of the Solid Particle Sedimentation and Bed Formation Behaviors Using a Hybrid Method. Energies. 2020; 13(19):5018. https://doi.org/10.3390/en13195018

Chicago/Turabian Style

Sheikh, Md Abdur Rob, Xiaoxing Liu, Tatsuya Matsumoto, Koji Morita, Liancheng Guo, Tohru Suzuki, and Kenji Kamiyama. 2020. "Numerical Simulation of the Solid Particle Sedimentation and Bed Formation Behaviors Using a Hybrid Method" Energies 13, no. 19: 5018. https://doi.org/10.3390/en13195018

APA Style

Sheikh, M. A. R., Liu, X., Matsumoto, T., Morita, K., Guo, L., Suzuki, T., & Kamiyama, K. (2020). Numerical Simulation of the Solid Particle Sedimentation and Bed Formation Behaviors Using a Hybrid Method. Energies, 13(19), 5018. https://doi.org/10.3390/en13195018

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