Kinematics of flow mass movements on inclined surfaces

Rendina, Ilaria; Viccione, Giacomo; Cascini, Leonardo

doi:10.1007/s00162-019-00486-y

Cited by 6 publications

(4 citation statements)

References 47 publications

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“…The work in [63] used a finite volume approach to simulate mudflows and hyper-concentrated flows characterized by suspended fine material by adopting a Bingham rheological model. Similar to [64], the Cross model was adopted for modeling the non-Newtonian flow, assuming that the constant parameter m was equal to 1, resulting in the following formulation of the apparent viscosity:…”

Section: Fast Landslides and Dense Granular Flows Interacting With Watermentioning

confidence: 99%

“…In order to avoid numerical divergence caused by the unbounded growth of effective viscosity as the shear rate approaches zero, µ eff is limited to a suitably high threshold value, which is set to µ 0 = 103µ B to assure convergence. The test cases simulated in work in [63] considered the flow on inclined surfaces and analyzed the role of the Froude number [65] during the propagation phase, which may be helpful in designing the control works.…”

Section: Fast Landslides and Dense Granular Flows Interacting With Watermentioning

confidence: 99%

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SPH Modeling of Water-Related Natural Hazards

Manenti

Wang

Domínguez

et al. 2019

Water

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This paper collects some recent smoothed particle hydrodynamic (SPH) applications in the field of natural hazards connected to rapidly varied flows of both water and dense granular mixtures including sediment erosion and bed load transport. The paper gathers together and outlines the basic aspects of some relevant works dealing with flooding on complex topography, sediment scouring, fast landslide dynamics, and induced surge wave. Additionally, the preliminary results of a new study regarding the post-failure dynamics of rainfall-induced shallow landslide are presented. The paper also shows the latest advances in the use of high performance computing (HPC) techniques to accelerate computational fluid dynamic (CFD) codes through the efficient use of current computational resources. This aspect is extremely important when simulating complex three-dimensional problems that require a high computational cost and are generally involved in the modeling of water-related natural hazards of practical interest. The paper provides an overview of some widespread SPH free open source software (FOSS) codes applied to multiphase problems of theoretical and practical interest in the field of hydraulic engineering. The paper aims to provide insight into the SPH modeling of some relevant physical aspects involved in water-related natural hazards (e.g., sediment erosion and non-Newtonian rheology). The future perspectives of SPH in this application field are finally pointed out.

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Section: Fast Landslides and Dense Granular Flows Interacting With Watermentioning

confidence: 99%

Section: Fast Landslides and Dense Granular Flows Interacting With Watermentioning

confidence: 99%

SPH Modeling of Water-Related Natural Hazards

Manenti

Wang

Domínguez

et al. 2019

Water

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“…Gravity‐driven grainflows or granular flows (Russell et al., 2019) or avalanches (Sutton et al., 2013a, 2013b) are ubiquitous on the lee slopes of migrating sand dunes on Earth and elsewhere. Grainflows have been the focus of substantial laboratory research and related modeling efforts to address the fundamental physics of particle flow (Dai et al., 2020; Drake, 1990; Li et al., 2016; Meninno et al., 2018; Silbert et al., 2001); applications in manufacturing or food and pharmaceutical processing (Gray, 2001; Rao et al., 2008); the behavior of sand piles in the context of self‐organized criticality (Abate et al., 2007; Dendy & Helander, 1998; Kadanoff et al., 1989; Mosco & Vivaldi, 2020); the controls on grainflow characteristics on inclined planes (Börzsönyi et al., 2008; Meninno et al., 2018; Rendina et al., 2019; Tischer et al., 2001); or grainflows on simulated dune slopes (Allen, 1970; McDonald & Anderson, 1992, 1995). Important studies have focused on key grainflow characteristics such as critical slope angles for the initiation of movement (Börzsönyi et al., 2008; Edwards et al., 2019; McDonald & Anderson, 1992; Sutton et al., 2013b); the dynamics of flow processes (Drake, 1990); relationships between the magnitude and frequency of grainflows and sand transport rates (Sutton et al., 2013a); grainflow shapes (Cornwall, Bourke, et al., 2018; Cornwall, Jackson, et al., 2018; Ewing et al., 2017; McDonald & Anderson, 1995, 1996; Nickling et al., 2002; Nield et al., 2017; Sutton et al., 2013a; Tischer et al., 2001; P. Zhang et al., 2022); and controls on the length and speed of grainflows (Börzsönyi et al., 2008; McDonald & Anderson, 1995, 1996; Meninno et al., 2018; Tischer et al., 2001).…”

Section: Introductionmentioning

confidence: 99%

Barchan Slipface Grainflows: Characteristics and Kinematics

Sherman

Zhang

Pelletier

et al. 2022

Geophysical Research Letters

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“…Severe floods forecasting is necessary for the prevention of these consequences and the creation of emergency plans which may avoid, or at least decrease, casualties and costly damages. In the literature, the dam-break problem has been widely investigated for fixed-bed cases, giving emphasis to the kinematic motion of the water body [1] and neglecting its interaction with the related morphodynamic processes (i.e., sediment transport and bottom evolution). In the fixed-bed problem, dam-break has been studied separately in domains with an initially dry or wet bed, owing to the related significant differences in flow behavior [2].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of 3D Dam-Break Wave Propagation in an Enclosed Domain with Dry and Wet Bottom

et al. 2021

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Dam-break flood waves represent a severe threat to people and properties located in downstream regions. Although dam failure has been among the main subjects investigated in academia, little effort has been made toward investigating wave propagation under the influence of tailwater depth. This work presents three-dimensional (3D) numerical simulations of laboratory experiments of dam-breaks with tailwater performed at the Laboratory of Hydraulics of Iskenderun Technical University, Turkey. The dam-break wave was generated by the instantaneous removal of a sluice gate positioned at the center of a transversal wall forming the reservoir. Specifically, in order to understand the influence of tailwater level on wave propagation, three tests were conducted under the conditions of dry and wet downstream bottom with two different tailwater depths, respectively. The present research analyzes the propagation of the positive and negative wave originated by the dam-break, as well as the wave reflection against the channel’s downstream closed boundary. Digital image processing was used to track water surface patterns, and ultrasonic sensors were positioned at five different locations along the channel in order to obtain water stage hydrographs. Laboratory measurements were compared against the numerical results obtained through FLOW-3D commercial software, solving the 3D Reynolds-Averaged Navier–Stokes (RANS) with the k-ε turbulence model for closure, and Shallow Water Equations (SWEs). The comparison achieved a reasonable agreement with both numerical models, although the RANS showed in general, as expected, a better performance.

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Kinematics of flow mass movements on inclined surfaces

Cited by 6 publications

References 47 publications

SPH Modeling of Water-Related Natural Hazards

SPH Modeling of Water-Related Natural Hazards

Barchan Slipface Grainflows: Characteristics and Kinematics

Experimental and Numerical Investigation of 3D Dam-Break Wave Propagation in an Enclosed Domain with Dry and Wet Bottom

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