Modeling flow regime transition in intermittent water supply networks using the interface tracking method

Nyende‐Byakika, Stephen

doi:10.5897/ijps11.873

Cited by 5 publications

(2 citation statements)

References 15 publications

(19 reference statements)

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“…In the same context, different research works were devoted to developing powerful tools to simulate water systems with normal, low, or no pressure. The used models comprise demand-driven models, head-driven models, and models of mixed flow in pipelines [5,123]. Mohan and Abhijith [124] proposed an improved pressure-dependent analysis integrating partial-flow characteristics to simulate the hydraulic behavior of IWSSs.…”

Section: Modelling Design and Optimization Techniquesmentioning

confidence: 99%

Mapping and Visualizing Global Knowledge on Intermittent Water Supply Systems

Zyoud

2022

Water

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Intermittent water supply systems (IWSSs) are prevalent in most developing countries and some developed ones. Their usage is driven by necessity rather than as a principal objective, mostly due to technical and economic deficiencies. Major health risks and socio-economic inequities are associated with such systems. Their impacts are aggravated by climate changes and the COVID-19 crisis. These are likely to have profound implications on progress toward advancing sustainable development goals (SDGs). Motivated by providing a comprehensive overview of global knowledge on IWSSs, the present work proposed to track and analyze research works on IWSSs utilizing bibliometric techniques and visual mapping tools. This includes investigating the trends and growth trajectories of research works on IWSSs and analyzing the various approaches proposed to expand our understanding with respect to the management, modeling, optimization, and impacts of IWSSs. The national and international contributions and collaboration figures are further analyzed at country, institution, author, and source levels. This analysis indicates that research works conducted on IWSSs have certain expectations in terms of productivity (total global productivity; 197 documents). The United States was the best country in terms of productivity (58 documents; 29.4%), while the Water Switzerland journal was the most productive journal (19 documents; 9.6%). The impacts of IWSSs on health and well-being have attracted considerable attention. The outcomes showed deep and justified worries in relation to the transition from intermittent to continuous supply, equity, and mitigating the health risks associated with IWSSs in the foreseen future. The utilization of artificial intelligence techniques and expert systems will drive and shape future IWSS-related research activities. Therefore, investments in this regard are crucial.

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Section: Modelling Design and Optimization Techniquesmentioning

confidence: 99%

Mapping and Visualizing Global Knowledge on Intermittent Water Supply Systems

Zyoud

2022

Water

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“…Intermittent systems experience more repetitive fluctuations in pipe pressures than continuous systems [48,60]. Furthermore, entrapped air bubbles may get overpressured following their infiltration to the pipes during the supply halt periods [24,61].…”

Section: Network Deteriorationmentioning

confidence: 99%

Building a Methodology for Assessing Service Quality under Intermittent Domestic Water Supply

Mokssit

Gouvello

Chazerain

et al. 2018

Water

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This document proposes a methodology for assessing the quality of water distribution service in the context of intermittent supply, based on a comparison of joint results from literature reviews and feedback from drinking water operators who had managed these networks, with standards for defining the quality of drinking water service. The paper begins by reviewing and proposing an analysis of the definition and characterization of intermittent water supply (IWS), highlighting some important findings. The diversity of approaches used to address the issue and the difficulty of defining a precise and detailed history of water supply in the affected systems broadens the spectrum of intermittency characterization and the problems it raises. The underlined results are then used to structure an evaluation framework for the water service and to develop improvement paths defined in the intermittent networks. The resulting framework highlights the means available to water stakeholders to assess their operational and management performance in achieving the improvement objectives defined by the environmental and socio-economic contexts in which the network operates. Practical examples of intermittent system management are collected from water system operators and presented for illustration purposes (Jeddah, Algiers, Port-au-Prince, Amman, Cartagena, Barranquilla, Mexico, Cancun, Saltillo, Mumbai, Delhi, Coimbatore . . .).

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Modelling of pressurised water supply networks that may exhibit transient low pressure – open channel flow conditions

Nyende‐Byakika

Ndambuki

Ngirane-Katashaya

2013

Water Practice and Technology

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On account of an ever increasing scarcity of potable water, ineffective water distribution networks (WDNs) and growing demand, several water distribution systems exhibit intermittent flow behaviour, either inevitably or under the deliberate action of operators, when they are expanded beyond their design capacities. This tendency is generally undesirable due to the fact that it leads to reduced service levels and consumer dissatisfaction. Moreover, due to inadequate system pressures and insufficient flows, the analysis of intermittent flow behaviour requires unconventional approaches, ultimately complicating network management. In this paper, a description is given, of tools that were developed to aid the analysis of WDNs during situations of low or non-existent pressures. Testing of the tools revealed that they could represent network behaviour fairly accurately.

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Modeling flow regime transition in intermittent water supply networks using the interface tracking method

Cited by 5 publications

References 15 publications

Mapping and Visualizing Global Knowledge on Intermittent Water Supply Systems

Mapping and Visualizing Global Knowledge on Intermittent Water Supply Systems

Building a Methodology for Assessing Service Quality under Intermittent Domestic Water Supply

Modelling of pressurised water supply networks that may exhibit transient low pressure – open channel flow conditions

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