Incompressible SPH simulation of landslide impulse-generated water waves

Farhadi, Asghar; Emdad, Homayoun; Rad, Ebrahim Goshtasbi

doi:10.1007/s11069-016-2270-8

Cited by 15 publications

(5 citation statements)

References 40 publications

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“…Several of the most complex problems tackled in computational engineering have presented a solution only given by SPH. These problems include fluid-structure interaction problems (Stasch et al, 2016), water waves generated by landslides (Farhadi et al, 2016) and violent sloshing problems in the presence of complex geometries (Sun et al, 2019). All these research studies show the reliability of SPH in problems with a large deformation of the free surface, demonstrating its possible application in fuel sloshing simulations.…”

Section: Introductionmentioning

confidence: 88%

A global analysis of a coupled violent vertical sloshing problem using an SPH methodology

Calderon-Sanchez

Martinez-Carrascal

González

et al. 2021

Engineering Applications of Computational Fluid Mechanics

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A dynamical system involving the decaying test of a partially filled liquid tank is analyzed in the present paper. This analysis is relevant for the design of aircraft fuel tanks, where the wings' structural dynamics are influenced by the complexity and the violence of the internal flow generated when atmospheric turbulence or gust is encountered. The study of this kind of system is performed in order to understand the extra energy dissipation caused by the confined fluid, and the interacting force between the fluid and the tank resulting from the vertical sloshing. A complete non-dimensional analysis of the problem in terms of additional damping has been performed, and the dependency on the most relevant non-dimensional numbers has been monitored. A coupled numerical simulation where both the tank and the fluid are combined has been used to study the system, and their results are compared to previous experiments. A smoothed particle hydrodynamics model, extensively validated in the sloshing literature, is used to calculate the magnitude and frequency of the vertical force between the fluid and the tank. The extra dissipation of the tank's mechanical energy caused by the fluid action is quantified for a particular configuration with constant filling level and a wide range of non-dimensional numbers. The sensitivity of the extra damping to the variation of the non-dimensional numbers is evaluated, and the most relevant ones are compared to the equivalent experimental tests. Results show that the numerical tool developed is able to capture the different phenomena involved and can be used to determine the influence of the different phenomena happening in violent vertically excited flows.

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Section: Introductionmentioning

confidence: 88%

A global analysis of a coupled violent vertical sloshing problem using an SPH methodology

Calderon-Sanchez

Martinez-Carrascal

González

et al. 2021

Engineering Applications of Computational Fluid Mechanics

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“…This test case is now expanded to clarify the conservation feature of the ICLS method for three-phases flows. (34) which represents a rigid body rotation with respect to (0.5,0.5). The disk completes one revolution after one unit of time.…”

Section: Three-phases Zalesak Slotted Diskmentioning

confidence: 99%

“…It remains challenging to provide a conservative interface representing method, which can describe interfaces accurately. Typical methods of describing interfaces include Smoothed Particle Hydrodynamics (SPH) [32][33][34][35], Volume of Fluid (VOF) method [36][37][38] and the LS method [39,40]. Even though SPH method is widely known as a numerical technique which is able to solve the partial differential equations, it can also be used to represent interfaces.…”

Section: Introductionmentioning

confidence: 99%

A three-phases model for the simulation of landslide-generated waves using the improved conservative level set method

et al. 2017

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This paper introduces a three-phases model based on the finite element method to simulate the generation and propagation of landslide-generated impulse waves, and this model can be employed to predict and prevent wave-induced hazards. The fluid-like landslide mass is treated as a non-Newtonian viscoplastic fluid. The motion of landslides, water and air is modelled by the incompressible Navier-Stokes equations and the interfaces between these three phases are captured with the n-phases improved conservative level set method which can preserve mass and provide precious interface parameters, including normals and curvatures. The conservative feature of this method is proven by the threephases Zalesak slotted disk test case. This method is then adopted to simulate the impulse wave generated by the Lituya Bay landslide and the current outputs are compared with other existing results. Finally, this verified model is utilized to model the impulse waves generated by the Halaowo landslide near the Xiangjiaba Dam in the Jinsha River and the results could provide references for further protective activities.

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“…Depending on the depth of the receiving water body, the landslide may be either completely or only partly submerged after its deposition. The formation, propagation and run-up of landslide induced impulse waves have been studied through simple physical experiments [7,8,10], analytical formulae [11], scalemodel physical experiments [12] and numerical simulation [4,[13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of Submarine non-rigid landslide by an explicit three-step incompressible smoothed particle hydrodynamics

Mobara¹,

Ghobadian²,

Rouzbahani³

et al. 2021

Engineering Analysis with Boundary Elements

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Incompressible SPH simulation of landslide impulse-generated water waves

Cited by 15 publications

References 40 publications

A global analysis of a coupled violent vertical sloshing problem using an SPH methodology

A global analysis of a coupled violent vertical sloshing problem using an SPH methodology

A three-phases model for the simulation of landslide-generated waves using the improved conservative level set method

Numerical simulation of Submarine non-rigid landslide by an explicit three-step incompressible smoothed particle hydrodynamics

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