Recent developments in flood modeling have led to the concept of coupled (sewer/surface) hydraulic models. In this paper two models are examined; a one-dimensional (1D) sewer model with 1D surface network (1D/1D) and two-dimensional (2D) flow (1D/2D). Flow over terrain is better modeled by 2D models, whereas confined channels provide good approximation less computational effort. This presents comparison simulation results 1D/1D 1D/2D model. The methodology adopted for setting up outlined...

To achieve fast flood modelling for large-scale problems, a two-dimensional cellular automata based model was developed. This employs simple transition rules and weight-based system rather than complex Shallow Water Equations. The simplified feature of allows the to be implemented in parallel environments, resulting significantly improved efficiency. has been tested using an analytical solution four case studies outputs were compared those from widely-used commercial physically-based...

High accuracy models are required for informed decision making in urban flood management. This paper develops a new holistic framework using information collected from multiple sources setting parameters of 2D model. illustrates the importance identifying key features terrain data capturing high resolution processes. A Cellular Automata based model CADDIES was used to simulate surface water inundation. Existing reports and photos obtained via social media were set investigate different...

Research on improving an overland flow model is presented for urban pluvial flooding under the dual-drainage concept where sewer dynamically interacts with flow. This occurs during heavy storms when system surcharged. The becomes pressurised and increases by additional volume flowing out from sewer. To represent realistically, a new methodology was developed to automatically create network which can interact drainage system. Use made of high-resolution, accurate Digital Elevation Model data...

With the increase in frequency and severity of flash flood events major cities around world, infrastructure people living those urban areas are exposed continuously to high risk levels pluvial flooding. The situation is likely be exacerbated by potential impact future climate change. A fast model could very useful for analysis. One-dimensional (1D) models provide limited information about flow dynamics whereas two-dimensional (2D) require substantial computational time cost, a factor that...

Flooding can affect every aspect of our lives and road transportation is not an exception. However, the interaction between floods was investigated closely in past. As lifeline any economy, it essential to analyse potential dangers threads that lead network capacity restraints. Considering flooding large areas for long durations, disruptions result extensive knock-on effects. To examine how impact a novel methodology developed into software tool which integrates flood traffic models. The...

Over the years, desalination has become integral to water resources management, primarily in coastal semi-arid arid regions. While desalinated seawater mainly been supplied municipal and high-revenue industries, agriculture sector faces increasing irrigation demands, making it a potential user. This review assesses sustainability of using for irrigation, shedding light on its limitations potential. Using presents challenges, including high energy consumption, contribution climate change,...

The new simulation model, named SIPSON, based on the Preissmann finite difference method and conjugate gradient method, is presented in paper. This model simulates conditions when hydraulic capacity of a sewer system exceeded, pipe flow pressurized, water flows out from piped to streets, inlets cannot capture all runoff. In mathematical buried structures pipelines, together with surface channels, make horizontally vertically looped network involving complex interaction flows. this paper,...

Flooding in urban areas represents a particular challenge to modellers and flood risk managers because of the complex interactions surface sewer flows. Quantified estimates provide common metric that can be used compare risks from different sources. In situations where there are several organisations responsible for management we wish able disaggregate total attribute it components system and/or agents with responsibility reduction order target actions. Two approaches attribution discussed:...

A vehicle exposed to flooding, after losing stability, becomes buoyant and may be washed away with potential injuries fatalities. Such vehicles cause additional disruption traffic that is already affected by which lead substantial indirect economic impact, especially in urban areas. Therefore, the analysis of stability flooding important order make decisions reduce damages hazards. In this research, based on an experimental campaign included a range twelve car models, new methodology obtain...

The linkage between sewer pipe flow and floodplain is recognised to induce an important source of uncertainty within two-dimensional (2D) urban flood models. This often attributed the use empirical hydraulic formulae (the one-dimensional (1D) weir orifice steady equations) achieve data-connectivity at linking interface, which require determination discharge coefficients. Because paucity high resolution localised data for this type flows, current understanding quantification a suitable range...

In this paper, a set of GIS-based tools is presented that combines information from hydraulic modelling results, spatially varied object attributes and damage functions to assess flood damage. They can directly process the outputs packages calculate direct tangible damage, risk life, health impact individual events. The also combine multiple events expected annual land cover classes urban growth models be used in under future conditions. This paper describes algorithms implemented, results...

In urban areas, overloaded sewers may result in surcharge that causes surface flooding. The overflow from sewer systems mainly starts at the inlets until pressure head manhole is high enough to lift up its cover, which stage surcharged flow be discharged via gap between bottom of cover and ground surface. this paper, we propose a new approach simulate such dynamic coupled modelling. Two case studies are employed demonstrate differences linking model traditional simplifies process. results...

This paper presents the results of a calibrated 1D/2D coupled model simulating surface and sewer flows in Barcelona. The covers 44 km2 city land involving 241 km sewers. It was developed order to assess flood hazard Raval district, historically affected by flooding during heavy rainfalls. Special attention paid hydraulic characterization inlet systems (representing interface between underground flows), through experimental expressions used estimate effective runoff into sewers case storms. A...

The design, construction and maintenance of Critical Infrastructures (CI) is commonly based on standards that are rigorous, so as to withstand any climate or weather-linked pressures. However, due change, characteristics may shift, resulting in increased frequency/magnitude potential failures, exposure new unknown risks. As vital components for the normal functioning modern societies, resilience CIs under stressors encompasses their structural integrity, operational elements, capacity...

In coupled sewer and surface flood modelling approaches, the flow process in gullies is often ignored although overland drained to network via inlets gullies. Therefore, entering transferred immediately, which may lead a different estimation than reality. this paper, we compared two approach with without considering processes modelling. Three historical events were adopted for model calibration validation. The results showed that inclusion of can further improve accuracy urban

Understanding the Circular Economy for water is challenging. It requires being acquainted with individual components involved in urban cycle such as stormwater, conveyance, groundwater, drainage, wastewater treatment and discharge. In addition, to appreciate benefits tradeoffs context of Economy, one also needs factor interrelations between other factors material recovery, energy use, expenses, environmental impacts. On top it, fact that each catchment has a different geography, hydrology...