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Book
Flood Early Warning and Risk Modelling
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Extreme hydrological phenomena are one of the most common causes of human life loss and material damage as a result of the manifestation of natural hazards around human communities. Climatic changes have directly impacted the temporal distribution of previously known flood events, inducing significantly increased frequency rates as well as manifestation intensities. Understanding the occurrence and manifestation behavior of flood risk as well as identifying the most common time intervals during which there is a greater probability of flood occurrence should be a subject of social priority, given the potential casualties and damage involved. However, considering the numerous flood analysis models that have been currently developed, this phenomenon has not yet been fully comprehended due to the numerous technical challenges that have arisen. These challenges can range from lack of measured field data to difficulties in integrating spatial layers of different scales as well as other potential digital restrictions.The aim of the current book is to promote publications that address flood analysis and apply some of the most novel inundation prediction models, as well as various hydrological risk simulations related to floods, that will enhance the current state of knowledge in the field as well as lead toward a better understanding of flood risk modeling. Furthermore, in the current book, the temporal aspect of flood propagation, including alert times, warning systems, flood time distribution cartographic material, and the numerous parameters involved in flood risk modeling, are discussed.


Book
Advances in Modelling and Prediction on the Impact of Human Activities and Extreme Events on Environments
Authors: --- --- --- ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Rapid urbanization and industrialization have progressively caused severe impacts on the mountainous, river, coastal environments, and have increased the risks for people living in these areas. Human activities have changed the ecosystems, and, hence, it is important to determine ways to predict these consequences to enable the preservation and restoration of these key areas. Furthermore, extreme events attributed to climate change are becoming more frequent, aggravating the entire scenario and introducing ulterior uncertainties for the accurate and efficient management of these areas to protect the environment, as well as the health and safety of people. Climate change is altering the rain and extreme heat, as well as inducing other weather mutations. All these lead to more frequent natural disasters such as flood events, erosions, and contamination and spreading of pollutants. Therefore, efforts need to be devoted to investigating the underlying causes, and to identifying feasible mitigation and adaptation strategies to reduce the negative impacts on both the environment and citizens. In support of this aim, the selected papers in this book covered a wide range of issues that are mainly relevant to the following: i) the numerical and experimental characterization of complex flow conditions under specific circumstances induced by the natural hazards; ii) the effect of climate change on the hydrological processes in the mountainous, river and coastal environments, iii) the protection of ecosystems and the restoration of areas damaged by the effects of the climate change and human activities.

Keywords

check dam --- hydrologic response --- sediment transport --- InHM --- Loess Plateau --- stratification effect --- inertia effect --- secondary flow --- meandering --- sediment laden flows --- pier scour --- non-uniform sediment --- armor layer --- equilibrium scour depth processes --- clear water scour condition --- suffusion --- internal stability --- grain size distribution (GSD) --- ecological operation --- multi-scale --- decomposition-coordination --- hydrologic alterations --- embankments --- overtopping failure --- material point method --- water–soil interactions --- numerical simulation --- SPH (Smoothed Particle Hydrodynamics) --- water-related natural hazards --- sediment scouring --- dense granular flow --- fast landslide --- surge wave --- flooding on complex topography --- HPC (High Performance Computing) --- FOSS (Free Open Source Software) --- climate change --- water levels --- causes and implications --- Qinghai Lake, Tibetan Plateau --- rainfall patterns --- rainfall-runoff --- soil erosion --- slope length --- slope gradient --- non-homogeneous debris flow --- viscous coefficients --- intermittent debris flows --- energy conversion --- focusing waves --- wave amplitude spectra --- space-time parameter --- experimental investigations --- InVEST model --- wetland --- ecosystem service assessment --- value analysis --- schistosomiasis prevention --- ISPH --- liquid sloshing --- water jet flow --- impact pressure --- excitation frequency --- Navier-Stokes equation --- SST k-ω turbulence model --- vortex-induced vibration (VIV) --- Arbitrary Lagrangian Eulerian (ALE) method --- finite element method (FEM) --- rock–soil contact area --- fissure flow --- karst rocky desertification --- runoff --- rainfall simulation --- Smooth Particle Hydrodynamics (SPH) --- porous media --- mathematical model --- coastal structure --- ocean and engineering --- turbulence --- emergent vegetation --- flexible vegetation --- rigid vegetation --- coherent structures --- shear layer --- elastic actuator line model --- OpenFOAM --- NREL 5 MW wind turbine --- aeroelastic performance --- check dam system --- sedimentary land --- flood control --- dam break --- SWE --- SPH --- openMP --- numerical modelling --- computational time --- experimental modelling --- scouring --- smoothed-particle hydrodynamics --- flooding --- dam-break --- debris flows --- urban evolution --- natural hazard


Book
Interaction between Waves and Maritime Structures
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book is the result of a stimulating Special Issue of Water, focusing on the “Interaction between waves and Maritime Structures”. This broadly inclusive title allowed the gathering of articles on different topics of engineering concern, making the book appeal to both scientists and practical engineers. Original contributions on evergreen problems, such as wave overtopping at conventional and unconventional coastal structures, wave-induced pressures at vertical walls, hydraulic stability of rubble mound breakwaters and dynamics of crown-walls indeed represent the main core of the book; however, other intriguing research topics are also tackled, including the solution of the Navier–Stokes equations for biphase flows, the downscaling of large maritime structures in a physical lab, floating bodies mechanics and the numerical modeling of coastline evolution.


Book
Green Low-Carbon Technology for Metalliferous Minerals
Author:
ISBN: 3036557989 3036557970 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Metalliferous minerals play a central role in the global economy. They will continue to provide the raw materials we need for industrial processes. Significant challenges will likely emerge if the climate-driven green and low-carbon development transition of metalliferous mineral exploitation is not managed responsibly and sustainably. Green low-carbon technology is vital to promote the development of metalliferous mineral resources shifting from extensive and destructive mining to clean and energy-saving mining in future decades. Global mining scientists and engineers have conducted a lot of research in related fields, such as green mining, ecological mining, energy-saving mining, and mining solid waste recycling, and have achieved a great deal of innovative progress and achievements. This Special Issue intends to collect the latest developments in the green low-carbon mining field, written by well-known researchers who have contributed to the innovation of new technologies, process optimization methods, or energy-saving techniques in metalliferous minerals development.

Keywords

Technology: general issues --- History of engineering & technology --- Mining technology & engineering --- metallurgical slag-based binders --- solidification/stabilisation --- As(III) --- As(V) --- calcium hydroxide --- sublevel caving --- numerical simulation --- physical model --- structural parameter --- green mining --- limestone --- high temperature --- confining pressure --- SHPB --- constitutive model --- open-pit mine --- PLAXIS 3D --- dynamic load --- safety factor --- acceleration --- particle sedimentation --- filling mining --- degree of influence --- pipeline transportation --- solid waste utilization --- tailings --- reclamation risk --- hazard identification --- complex network --- hazard management --- digital mine --- mine short-term production planning --- haulage equipment dispatch plan --- ABCA --- NSGA --- settlement velocity measurement --- K-means --- tailings backfill --- unsupervised learning --- cemented paste backfill --- ESEM --- picture processing --- floc networks --- pumping agent --- fractal dimension --- backfill slurry --- strength of cemented backfill --- inhomogeneity of cemented backfill --- cemented tailings backfill --- copper --- zinc --- recovery --- sulfide concentrate --- artificial microbial community --- granular backfill --- bearing characteristics --- numerical model --- particle size --- surface subsidence --- blasting dust movement --- dust concentration --- particle size distribution --- blasting dust reduction --- backfill --- metal mine --- log-sigmoid --- tailings pond --- regional distribution --- dam break --- accident statistics --- causation analysis --- backfilling --- increasing resistance and reducing pressure --- computational fluid dynamics --- spiral pipe --- stowing gradient --- coal-based solid waste --- orthogonal experiment --- strength development --- regression analysis --- engineering performance --- n/a


Book
Advances in Hydraulics and Hydroinformatics Volume 2
Authors: --- --- ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue reports on recent research trends in hydraulics, hydrodynamics, and hydroinformatics, and their novel applications in practical engineering. The Issue covers a wide range of topics, including open channel flows, sediment transport dynamics, two-phase flows, flow-induced vibration and water quality. The collected papers provide insight into new developments in physical, mathematical, and numerical modelling of important problems in hydraulics and hydroinformatics, and include demonstrations of the application of such models in water resources engineering.

Keywords

chute aerator --- spillway bottom --- air concentration --- air bubble frequency --- air bubble chord length --- evolution of precipitation --- model simulation --- information entropy theory --- desert–oasis areas --- Tarim Basin --- gravity wave model --- dam-break flood --- image processing technology --- experimental study --- cavitation bubble --- high-speed photography --- impact pressure --- micro-jet --- Ningxia–Inner Mongolia --- Yellow River --- riverbank collapse --- BSTEM model --- flood &amp --- dry season --- sediment transport --- finite crest length weir --- FGP (flaring gate pier) --- discharge coefficient --- subcritical flow --- river flow modeling --- sediment transport simulation --- automation of flow modeling --- HEC-RAS controller --- python scripting --- three-dimensional aerator --- multi-horizontal-submerged jets --- energy dissipation --- near-field vibration --- fluctuating pressure --- gate-opening modes --- collapse near a wall --- double cavitation bubble --- tilt distribution cavitation --- parallel cavitation --- pseudopotential lattice Boltzmann model --- numerical simulation --- pooled stepped spillway --- pool weir --- flow property --- surface-piercing propeller --- artificial ventilation --- hydrodynamic performance --- LES-VOF method --- flow-induced vibration --- plane gate --- numerical analysis --- bridge scour --- submerged flow --- physical hydraulic modeling --- ski-jump flow --- spillway outlet --- jet trajectory --- experimental model --- rainfall intensity distribution --- two water jets --- collision in air --- Gaussian distribution --- trajectory line --- clogging --- drip irrigation --- flushing --- particle size distribution --- sediments --- submerged jets --- aerated flow --- plunge pool --- trapezoidal cross-section --- U-shaped channel --- radius-to-width ratio --- slope coefficient --- hydraulic characteristics --- hydraulic jump --- Froude number --- stilling basin with shallow-water cushion (SBSWC) --- large eddy simulation --- best depth --- CFD–DEM coupling --- hydrocyclone --- particle shape --- particle size --- water and sediment separation --- stepped dropshaft --- flow region --- central angle of step --- free surface measurement --- optical motion capturing --- tank test --- wave gauge --- sloshing --- offset jet --- potential core --- decay rate --- k-ε model --- abutment --- overtopping flow --- pressure flow --- scour and velocity field --- Y-shaped confluence channel --- non-submerged rigid vegetation --- longitudinal velocity --- secondary flow --- turbulent kinetic energy --- wetland --- lattice Boltzmann method --- shallow lake --- drag force --- water-saving irrigation development level --- Sichuan province --- TOPSIS method --- experiment --- particle image velocimetry --- 3D confined wall jet --- mean flow --- multiple bubble collapse --- pressure wave energy --- energy conversion rate --- consistent particle method --- solitary wave --- submerged breakwater --- breaking wave --- vortex --- free surface flow --- embankment weir --- bridge piers --- turbulence --- CFD --- sediment --- transforming mechanism --- open channel bend --- velocity distribution --- PIV --- hyporheic exchange --- surface−groundwater flow process --- influencing factors --- orthogonal tests --- sensitivity analysis --- linearly moved irrigation system --- application depth --- moving speed --- uniformity coefficient --- tidal discharge --- phase difference --- tidal channel junction --- flow division --- fluvial acoustic tomography --- wavelet analysis --- DEM --- hydrodynamic modelling --- river bathymetry --- floods --- Bathy-supp --- coherent vortex structure --- backward-facing step --- synchronized PIV --- separation and reattachment --- free shear layer --- vortical evolution

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