A DEM-based Euler–Lagrange model for motion of particle–fluid two-phase mixtures

Li, Wenxin; Shi, Huabin; Yu, Xiping

doi:10.1007/s11440-023-02054-5

Acta Geotech.

2023

DOI: 10.1007/s11440-023-02054-5

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A DEM-based Euler–Lagrange model for motion of particle–fluid two-phase mixtures

Wenxin Li,

Huabin Shi,

Xiping Yu

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2024

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Cited by 2 publications

References 61 publications

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An efficient two-dimensional non-hydrostatic model for simulating submarine landslide-generated tsunamis

Tarwidi,

Pudjaprasetya,

Adytia

et al. 2024

Ocean Engineering

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An efficient two-dimensional non-hydrostatic model for simulating submarine landslide-generated tsunamis

Tarwidi,

Pudjaprasetya,

Adytia

et al. 2024

Ocean Engineering

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Impact of inlet flow velocity on sediment reduction in pump station forebays

Qiao,

Wang,

Huang

et al. 2024

Physics of Fluids

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Pump stations are critical for effective water management in China, particularly in sediment-laden regions such as Ningxia, where vortex flow patterns in forebays result in sediment deposition and diminished operational efficiency. Through this research endeavor, numerical simulations and engineering measurements were employed to systematically analyze the causes of adverse flow patterns induced by the water-sediment two-phase flow in a sudden expansion pump station located in Ningxia, focusing on seven cases that examined vortex behavior and sediment concentration. Results indicate that in a forward forebay, the inflow velocity at the diversion channel entrance is correlated with suspended sediment concentration. Compared to other cases, case 5 produces a smaller vortex that has a minimal impact on the flow pattern and exhibits the lowest sediment concentration. Applying the Q-criterion reveals that case 5 possesses the smallest vortex structure volume. Additionally, a quadratic polynomial relationship between inlet velocity and sediment deposition efficiency was established, further confirming the accuracy of case 5. At an inlet velocity of 1.065 m/s, sediment deposition was markedly reduced as the vortex strength decreased, enabling sediment particles to escape, thereby enhancing the operational efficiency of the pump station. This study offers optimized operational conditions and theoretical guidance for the management of pump stations in high-sediment regions.

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A DEM-based Euler–Lagrange model for motion of particle–fluid two-phase mixtures

Cited by 2 publications

References 61 publications

An efficient two-dimensional non-hydrostatic model for simulating submarine landslide-generated tsunamis

An efficient two-dimensional non-hydrostatic model for simulating submarine landslide-generated tsunamis

Impact of inlet flow velocity on sediment reduction in pump station forebays

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