Influencing factors on fines deposition in porous media by CFD–DEM simulation

Liu, Pengfei; Sun, Meng; Chen, Zejian; Zhang, Shuai; Zhang, Feng-Shou; Chen, Yunmin; Chen, Weiqiu; Bate, Bate

doi:10.1007/s11440-023-01870-z

Cited by 7 publications

(3 citation statements)

References 114 publications

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“…In the DEM, the normal force applied to the particle is taken to be affected by the overlap and interaction parameters as well as the surface energy. The particle surface energy density is the particle energy per unit surface area [27,28]. Three surface energy densities (0.1 J/m 2 , 1 J/m 2 , 5 J/m 2 ) were selected based on the current research results to simulate the transport of gangue slurry with different particle sizes (0.15 mm, 0.5 mm, 1.0 mm, and 2.0 mm) in the pipeline and to analyze the distribution of particles for each particle size [27,44].…”

Section: Particle Distribution In the Pipelinementioning

confidence: 99%

“…The motion behavior of gangue slurry in the pipeline results from the interaction between gangue particles and slurry [14,21,22]. The coupled CFD-DEM method is used to solve the interaction between particles and fluid [23][24][25][26][27][28], which is very suitable for simulating the flow process of gangue slurry in the pipeline [13,19]. The CFD-DEM method has been utilized in various applications involving the coupling of fluids and solids in geotechnical engineering [29,30].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Study of Gangue Slurry Deposition Behavior in Pipelines Considering Viscosity Change

Gu,

Wang,

et al. 2024

Minerals

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Pipeline conveying is a crucial method for realizing gangue slurry filling. In order to avoid the blockage of gangue slurry in pipeline conveying, it is necessary to clarify the deposition behavior of gangue particles in the pipeline. This paper analyzes coal gangue’s microstructure and mineral composition in the Zhaozhuang No. 2 coal mine through electron microscope scanning and X-ray diffraction tests. We studied the viscosity characteristics of gangue slurry at different mass concentrations and particle sizes and analyzed the change rule of viscosity of gangue slurry with time. Based on determining the nature of the slurry material, a simulation analysis of the deposition behavior of the gangue slurry in a pipeline was carried out using the coupled fluid dynamics–discrete element (CFD-DEM) method. The results show that gangue slurry with a particle size larger than 1.0 mm is likely to lead to the blockage of the pipeline. A small increase in viscosity will promote a uniform distribution of particles inside the pipeline. The deposition behavior of particles is jointly influenced by gravity, fluid interaction force, inter-particle force, and the interaction between particles and the pipeline surface. The research results can be used as a reference for the design and study of gangue slurry grouting systems.

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Section: Particle Distribution In the Pipelinementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Study of Gangue Slurry Deposition Behavior in Pipelines Considering Viscosity Change

Gu,

Wang,

et al. 2024

Minerals

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“…Coupling of the fluid phase and solid particle is achieved by data exchange, such as momentum and particle position. CFD-DEM can analyze fluidparticle and particle-particle interactions at particle scale, such as drag force, pressure gradient, van der Waals interaction, and Coulombic forces (Liu et al, 2023). As such, CFD-DEM is widely applied in geotechnical engineering, chemical engineering, environmental engineering, and energy engineering.…”

Section: Cfd-dem Simulations For Fines Migrationmentioning

confidence: 99%

Visualizing oil displacement by nanofluids at pore scale: A concentration-dependent nanofluid spreading induced by structural disjoining pressure

Akamine,

Tosuai,

Ramadhan

et al. 2024

Capillarity

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Multiphase flow is a common scenario in industrial and environmental applications. Especially at microscopic scale, accurately describing flow processes is challenging due to fluid-fluid, fluid-solid, and solid-solid interactions. Pore-scale microfluidics and numerical simulation methods considering complex topology are increasingly being applied to study multiphase flow phenomena. This work focuses the recent applications of microfluidic experiments and new numerical simulations in complex flows for enhanced oil recovery. Two types of coupling algorithms are provided to integrate the advantages of pore network model and direct numerical simulation methods. For fines migration, the computational fluid dynamics-discrete element method is proposed to describe the coupling process between fluid and solid particles. Pore-scale microfluidic experiments and simulation methods deals with complex flow processes at micro/nano scales, providing effective solutions for complex industrial processes.

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Monitoring the remediation of groundwater polluted by MSW landfill leachates by activated carbon and zeolite with spectral induced polarization technique

Yang,

Zhou,

Luo

et al. 2023

Environ Geochem Health

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Influencing factors on fines deposition in porous media by CFD–DEM simulation

Cited by 7 publications

References 114 publications

Numerical Study of Gangue Slurry Deposition Behavior in Pipelines Considering Viscosity Change

Numerical Study of Gangue Slurry Deposition Behavior in Pipelines Considering Viscosity Change

Visualizing oil displacement by nanofluids at pore scale: A concentration-dependent nanofluid spreading induced by structural disjoining pressure

Monitoring the remediation of groundwater polluted by MSW landfill leachates by activated carbon and zeolite with spectral induced polarization technique

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