Dimensional effect of CFD analysis for submarine landslides interactions with infinite suspension pipelines

Guo, Xingsen; Liu, Xiaolei; Luo, Qianyu; Chen, Bingbing; Zhang, Cheng

doi:10.1016/j.oceaneng.2022.113094

Cited by 4 publications

(1 citation statement)

References 53 publications

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“…Mao et al (2020) proposed a new discrete element method for solving CFD, which can more accurately simulate the interaction between uid elds in the process of submarine landslides. Wu et al (2023) proposed a CFD-DEM method considering the in uence of non-spherical particles, analyzed the in uence of particles on the process of submarine landslide collapse, and explored the process and characteristics of soil particles lling with water. Despite these advances, physical model experiments (the lab based investigations) remain the main method for studying submarine landslides.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on movement characteristics and influence factors of submarine landslide triggered by earthquake

Zhang,

Cai,

Cai

et al. 2024

Preprint

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Earthquake-induced submarine landslides are destructive mass movement events impacting many marine environments. In this study, a novel vibrating flume tank was developed to study the macroscopic phenomenon of submarine landslide movement triggered by earthquakes. The results showed the movement of the sliding body has the characteristics of periodic and intermittent flow. The sliding body strikes the structure on the slope, and the force of the structure quickly reaches its peak value, then fluctuates near that value for a period of time before decreasing rapidly. A higher clay content enhanced the plastic deformation of the sliding body and the movement velocity of the sliding body was reduced. When the earthquake vibration frequency increased, the average velocity of the sliding body increased. The electrolyte in seawater enhances the water pressure and plays the role of lubricant. As the electrolyte concentration in the seawater increased, the velocity of the sliding body movement increased accordingly due to the lower friction. When the seabed slope gradient increased, the erosion effect of the sliding body on the seabed slope became stronger. As the volume of the sliding body increased, the movement velocity increased. This research can provide a basis for evaluating the hazards of submarine landslides, which is of great significance for preventing and avoiding disasters caused by submarine landslides.

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Section: Introductionmentioning

confidence: 99%

Experimental study on movement characteristics and influence factors of submarine landslide triggered by earthquake

Zhang,

Cai,

Cai

et al. 2024

Preprint

View full text Add to dashboard Cite

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Centrifuge tests on the deformation law of pipelines crossing slopes with different water contents

Jia,

Yang,

Dai

et al. 2024

Sci Rep

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Numerical study of interactions between Bingham fluids and flexible structures using the immersed boundary-lattice Boltzmann method

Hui,

Wang,

Xia

et al. 2024

Physics of Fluids

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This paper studies the interactions between Bingham fluids and flexible structures under an immersed boundary lattice-Boltzmann framework. The objective of this paper is to understand the rheology effects of Bingham fluids on the structure responses and the flow characteristics within Bingham fluids–structure interactions. To this end, a numerical algorithm that integrates the lattice Boltzmann method and the smoothed point interpolation method is proposed. Alongside this, a hybrid multiple relaxation time scheme in the framework of the immersed boundary-lattice Boltzmann method is used to improve the numerical accuracy and stability. Then, the numerical algorithm is applied to three typical fluid–structure interactions cases in both Newtonian and Bingham fluids regarding an elastic beam, a self-induced elastic beam attached to a circular cylinder and a self-propelled fishlike body. Numerical results highlight that the yield stress of Bingham fluids influences predominantly on the structure responses, such as the solid deformation, the oscillation amplitude, the oscillation period, and the swimming velocity. In addition, the yielded/unyielded zones' evolution process of the Bingham fluids–structure interaction is also identified in this paper.

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Dimensional effect of CFD analysis for submarine landslides interactions with infinite suspension pipelines

Cited by 4 publications

References 53 publications

Experimental study on movement characteristics and influence factors of submarine landslide triggered by earthquake

Experimental study on movement characteristics and influence factors of submarine landslide triggered by earthquake

Centrifuge tests on the deformation law of pipelines crossing slopes with different water contents

Numerical study of interactions between Bingham fluids and flexible structures using the immersed boundary-lattice Boltzmann method

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