A5037127113- Hydraulic flow and structures
- Computational Fluid Dynamics and Aerodynamics
- Flood Risk Assessment and Management
- Hydrology and Sediment Transport Processes
- Water Systems and Optimization
- Fluid Dynamics and Turbulent Flows
- Tropical and Extratropical Cyclones Research
- Hydrology and Watershed Management Studies
- Meteorological Phenomena and Simulations
- Wave and Wind Energy Systems
- Fluid Dynamics and Vibration Analysis
- Advanced Numerical Methods in Computational Mathematics
- Wind Energy Research and Development
- Fluid Dynamics Simulations and Interactions
- Coastal and Marine Dynamics
- Lattice Boltzmann Simulation Studies
- Landslides and related hazards
- Urban Stormwater Management Solutions
- Dam Engineering and Safety
- Platelet Disorders and Treatments
- Blood properties and coagulation
- Groundwater and Isotope Geochemistry
- Navier-Stokes equation solutions
- Water Treatment and Disinfection
- Geographic Information Systems Studies
Parthenope University of Naples
2015-2024
University of Naples Federico II
1988-2018
The present work describes a procedure for the evaluation of optimal number, position, configuration, and sizes detention tanks in urban drainage networks, to decrease maximum flow depths velocities an assigned return period comply with local design requirements. Each candidate solution optimization problem is evaluated by means semidistributed hydrological model which kinematic wave used as flood routing model, whereas variational approach evaluate critical characteristics corresponding...
Water loss is a phenomenon frequently observed within water distribution systems (WDSs), that considerably worsened by an excessive pressure throughout the network. As alternative option to pipe replacement, use of pumps working as turbines, throttle control valves (TCVs), or reduction (PRVs) can be used reduce leakage. For preassigned number these devices, their positions and settings chosen minimize losses in network minimise costs associated with On other hand, for leakage, number,...
Water distribution systems are vulnerable to intentional contamination: in this paper, optimising the placement of a set monitoring stations promptly detect type attack is considered. Due uncertainty about place and time beginning attack, inherent variability hydraulic conditions throughout water network, impact probability (IPD) has been defined order take into account random conventional measures impact. Two different approaches for optimal compared: first minimises expected value damage...
Sea wave energy is one of the most promising renewable sources, even if relevant technology not mature enough for global market and yet competitive compared with solar, wind tidal current devices. Particularly, among variety converters developed in last decade, heaving point absorbers represent feasible studied technologies, as shown by small-scale testing full-scale prototypes, deployed years throughout world. Nevertheless, need further reduction production costs requires a specialized...
In recent years, the interest towards use of pumps operating as turbines (PATs) for generation electrical energy has increased, due to low cost implementation and maintenance. The main issue that inhibits a wider PATs is lack corresponding characteristic curves, because manufacturers usually provide only pump-mode performance characteristics. PAT selection phase, turbine-mode curves forces users expend expensive time-consuming efforts in laboratory testing. technical literature, numerous...
Floods often cause significant damage to transportation infrastructure such as roads, railways, and bridges. This study identifies several topographic, environmental, hydrological factors (slope, elevation, rainfall, land use cover, distance from rivers, geology, topographic wetness index, drainage density) influencing the safety of railway uses multi-criteria analysis (MCA) alongside an analytical hierarchy process (AHP) produce flood susceptibility maps within a geographic information...
Climate change and urbanization, among various factors, are expected to exacerbate the risk of flood disasters in urban areas. This prompts construction appropriate modeling tools capable addressing full-scale floods for hazard assessment. In this view, sub-grid porosity models based on classic shallow water equations (SWE) appear be a promising approach applications environments with reduced computational cost respect SWE high-resolution grids. The present work focuses recently proposed...
The shallow-water equations are widely used to model surface water bodies, such as lakes, rivers and the swash zone in coastal flows. Physically congruent solutions characterized by non-negative depth, many numerical methods may fail preserve this property at discrete level when moving wet–dry transitions present physical domain. In paper, we a spectral-volume method for approximate solution of one-dimensional equations, which is third-order accurate wet regions, far from discontinuities,...
The water loss is a phenomenon frequently observed within distribution systems. A considerable part of losses occurs either because the incorrect assembly joints or fatigue and ageing material used to ensure watertight seal. Moreover, such leakage very difficult detect assess. In this work, we present novel formulation for modelling pressure effect on background through joints. proposed approach based preliminary evaluation enlargement Δω, due pressure, existing space between outer side...
The numerical modeling of hyperconcentrated shallow flows is a challenging task because they exhibit special features, such as propagation over dry beds, profound bed elevation modifications owing to erosion or deposition phenomena, and flow discontinuities. In this paper, novel depth-positivity preserving Harten, Lax, van Leer—contact (HLLC) Riemann solver devised in order approximate the solution problem for 1D (one-dimensional) equations horizontal beds. used building block construction...
Abstract Simplified flood propagation models are often employed in practical applications for hydraulic and hydrologic analyses. In this paper, we present a new numerical method the solution of Linear Parabolic Approximation (LPA) De Saint Venant equations (DSVEs), accounting space variation model parameters imposition appropriate downstream boundary conditions. The is based on analytical cascade linear diffusive channels Laplace Transform domain. time domain solutions obtained using Fourier...
The discharges flowing through rural drainage networks depend not only on the local climatic and hydrologic characteristics, but also geometric characteristics of channels constituting network. For this reason, evaluation design should be accomplished during search optimal This leads to time-consuming optimization procedures, it is desirable devise efficient numerical alternatives. Two novel models, EGA EGA-f, are proposed in order increase efficiency genetic algorithms (GAs) for solution...