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Author: Fang Zeng Publisher: ISBN: Category : Languages : en Pages : 156
Book Description
The complex topology and adaptive behavior of infrastructure systems are driven by both self-organization of the demand and rigid engineering solutions. Therefore, the engineering complex system requires a method balancing holism and reductionism. To model the growth of water distribution networks (WDNs), a complex network model was developed following the combination of local optimization rules and engineering considerations. The demand node generation is dynamic and follows the scaling law of urban growth. The proposed model can generate WDN similar to reported real-world WDNs on some structural properties. Comparison with different modeling approaches indicates that a realistic demand node distribution and co-evolvement of demand node and network are important for the simulation of real complex networks. Combining with a pipe sizing algorithm, this dynamic model was used to investigate the effect of system size on cost efficiency of WDNs and find the optimum planning horizon for WDN expansion design.
Author: Fang Zeng Publisher: ISBN: Category : Languages : en Pages : 156
Book Description
The complex topology and adaptive behavior of infrastructure systems are driven by both self-organization of the demand and rigid engineering solutions. Therefore, the engineering complex system requires a method balancing holism and reductionism. To model the growth of water distribution networks (WDNs), a complex network model was developed following the combination of local optimization rules and engineering considerations. The demand node generation is dynamic and follows the scaling law of urban growth. The proposed model can generate WDN similar to reported real-world WDNs on some structural properties. Comparison with different modeling approaches indicates that a realistic demand node distribution and co-evolvement of demand node and network are important for the simulation of real complex networks. Combining with a pipe sizing algorithm, this dynamic model was used to investigate the effect of system size on cost efficiency of WDNs and find the optimum planning horizon for WDN expansion design.
Author: Pramod R. Bhave Publisher: Alpha Science Int'l Ltd. ISBN: 9781842651322 Category : Science Languages : en Pages : 472
Book Description
Design of water distribution networks is traditionally based on trial-and-approach in which the designer assumes, based on experience and judgment, sizes of different elements and successively modifies them until a network with satisfactory hydraulic performance is obtained. This text covers: Essential hydraulic, economic optimization principles. Theory is developed gradually for optimal design of simple, single-source branched networks subjected to single loading to complex, multiple-source looped networks subjected to multiple loading. Strengthening and expansion of existing networks and also reliability-based design. Several illustrative examples enabling the reader to apply them in practice- approximately 100 line drawings.
Author: Pramod R. Bhave Publisher: Alpha Science Int'l Ltd. ISBN: 9781842653593 Category : Technology & Engineering Languages : en Pages : 548
Book Description
Analysis of a Water Distribution Network may be necessary to know its behaviour under normal and deficient conditions and the design of a new network. Various methods such as Hardy Cross, Newton-Raphson, Linear Theory, and Gradient for static and time-dependent (extended period) analyses are described with small illustrative examples. The book also covers analysis considering withdrawal along links, head-dependent and performance-based analyses, calibration of existing networks, water quality modeling, analysis considering uncertainty of parameters, and reliability analysis of water distribution networks. Brief description of available computer softwares is also given.
Author: Jian Chen Publisher: Springer ISBN: 9811069891 Category : Computers Languages : en Pages : 285
Book Description
This book constitutes the refereed proceedings of the 18th International Symposium, KSS 2017, held in Bangkok, Thailand, in November 2017. The 21 revised full papers presented were carefully reviewed and selected from 63 submissions. This year KSS 2017 provides opportunities for presenting interesting new research results, facilitating interdisciplinary discussions, and leading to knowledge transfer under the theme of "Artificial Intelligence and Information Systems for Knowledge, Technology and Service Management".
Author: Mirjam Blokker Publisher: IWA Publishing ISBN: 1780400284 Category : Science Languages : en Pages : 181
Book Description
Water quality processes in the drinking water distribution network are strongly influenced by the flow velocity and residence time of the water in the network. In order to understand how the water quality changes in the drinking water distribution network, a good understanding of hydraulics is required. Specifically in the periphery of the network, where customers are connected, the hydraulics can change rapidly. During the night time the water is almost stagnant and the residence time increases. In the morning, when everybody gets up and flushes the toilet and takes a shower, high flow velocities can occur. During the remainder of the day flow velocities are low. The stochastic endues model SIMDEUM was developed to simulate water use on a small time scale (1 s) and small spatial scale (per fixture). SIMDEUM enables a good model of flow velocities, residence times and the connected water quality processes in the water distribution network. Stochastic Water Demand Modelling: Hydraulics in Water Distribution Networks describes the requirements of hydraulics in water quality modelling and provides insight into the development of detailed residential and non-residential water demand models. The book illustrates the use of detailed demand models in water quality models with respect to the variation in residence times and the relation with particle accumulation and resuspension. The models are compared to measurements in several real drinking water distribution networks.
Author: American Water Works Association Publisher: ISBN: Category : Science Languages : en Pages : 184
Book Description
Updated from the 1989 version, this manual presents the basics of computerized programs and processes for control and maintenance of a water distribution system. Discussed are operational functions that should be included, how systems should be designed and organized and what operators should be aware of to integrate new data into current systems.
Author: Alberto Campisano Publisher: MDPI ISBN: 3039437895 Category : Technology & Engineering Languages : en Pages : 290
Book Description
The Special Issue on Advances in Modeling and Management of Urban Water Networks (UWNs) explores four important topics of research in the context of UWNs: asset management, modeling of demand and hydraulics, energy recovery, and pipe burst identification and leakage reduction. In the first topic, the multi-objective optimization of interventions on the network is presented to find trade-off solutions between costs and efficiency. In the second topic, methodologies are presented to simulate and predict demand and to simulate network behavior in emergency scenarios. In the third topic, a methodology is presented for the multi-objective optimization of pump-as-turbine (PAT) installation sites in transmission mains. In the fourth topic, methodologies for pipe burst identification and leakage reduction are presented. As for the urban drainage systems (UDSs), the two explored topics are asset management, with a system upgrade to reduce flooding, and modeling of flow and water quality, with analyses on the transition from surface to pressurized flow, impact of water use reduction on the operation of UDSs, and sediment transport in pressurized pipes. The Special Issue also includes one paper dealing with the hydraulic modeling of an urban river with a complex cross-section.
Author: Hocine Cherifi Publisher: Springer Nature ISBN: 3030366839 Category : Technology & Engineering Languages : en Pages : 1047
Book Description
This book highlights cutting-edge research in the field of network science, offering scientists, researchers, students, and practitioners a unique update on the latest advances in theory and a multitude of applications. It presents the peer-reviewed proceedings of the Eighth International Conference on Complex Networks and their Applications (COMPLEX NETWORKS 2019), which took place in Lisbon, Portugal, on December 10–12, 2019. The carefully selected papers cover a wide range of theoretical topics such as network models and measures; community structure, and network dynamics; diffusion, epidemics, and spreading processes; resilience and control as well as all the main network applications, including social and political networks; networks in finance and economics; biological and neuroscience networks; and technological networks.
Author: Fang Zeng
Author: Fang Zeng
Author: Frank Fallside
Author: Pramod R. Bhave
Author: Pramod R. Bhave
Author: 
Author: Jian Chen
Author: Mirjam Blokker
Author: American Water Works Association
Author: Alberto Campisano
Author: Hocine Cherifi