TY - JOUR
T1 - Study on corium jet breakup and fragmentation in sodium with a GPU-accelerated color-gradient lattice Boltzmann solver
AU - Cheng, Hui
AU - Cheng, Songbai
AU - Zhao, Jiyun
PY - 2020/5
Y1 - 2020/5
N2 - In this paper, the color-gradient lattice Boltzmann model (Saito et al., Phys. Re. E 98, 013,305, 2018) is used to study 3D hydrodynamic corium jet breakup and fragmentation in sodium. Firstly, an in-house GPU-accelerated color-gradient lattice Boltzmann solver is introduced in detail. Then, the solver is validated by comparing the simulation results with two demo Wood's metal jet experiments. Finally, the solver is used to study the characteristics and mechanisms of molten corium jet breakup and fragmentation in sodium under severe accident scenarios in a sodium-cooled fast reactor. The corium jet morphologies, breakup and fragmentation mechanisms, penetration depth, breakup length and fragment size distribution are extensively studied.
AB - In this paper, the color-gradient lattice Boltzmann model (Saito et al., Phys. Re. E 98, 013,305, 2018) is used to study 3D hydrodynamic corium jet breakup and fragmentation in sodium. Firstly, an in-house GPU-accelerated color-gradient lattice Boltzmann solver is introduced in detail. Then, the solver is validated by comparing the simulation results with two demo Wood's metal jet experiments. Finally, the solver is used to study the characteristics and mechanisms of molten corium jet breakup and fragmentation in sodium under severe accident scenarios in a sodium-cooled fast reactor. The corium jet morphologies, breakup and fragmentation mechanisms, penetration depth, breakup length and fragment size distribution are extensively studied.
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U2 - 10.1016/j.ijmultiphaseflow.2020.103264
DO - 10.1016/j.ijmultiphaseflow.2020.103264
M3 - RGC 21 - Publication in refereed journal
SN - 0301-9322
VL - 126
JO - International Journal of Multiphase Flow
JF - International Journal of Multiphase Flow
M1 - 103264
ER -