Search
Now showing items 1-7 of 7
Decomposition Model of a General Water Supply Network Graph
Publisher: American Society of Civil Engineers
Abstract: A new decomposition concept of the network graph according to its connectivity properties is introduced in this paper that allows various applications in the field of systems analysis of water supply networks. In this case, ...
Modeling the Behavior of Flow Regulating Devices in Water Distribution Systems Using Constrained Nonlinear Programming
Publisher: American Society of Civil Engineers
Abstract: Currently the modeling of check valves and flow control valves in water distribution systems is based on heuristics intermixed with solving the set of nonlinear equations governing flow in the network. At the beginning of ...
A Content-Based Active-Set Method for Pressure-Dependent Models of Water Distribution Systems with Flow Controls
Publisher: ASCE
Abstract: In this paper a new method is proposed that solves for the steady state of pressure-dependent models (PDMs) with flow control valves. Rather than model flow devices individually, the method solves the more general problem ...
Content-Based Active-Set Method for the Pressure-Dependent Model of Water Distribution Systems
Publisher: American Society of Civil Engineers
Abstract: A new content-based, box-constrained, active-set projected Newton method is presented that solves for the heads, the pipe flows, and the nodal outflows of a water distribution system in which nodal outflows are pressure ...
An Interior Point Method Applied to Flow Constraints in a Pressure-Dependent Water Distribution System
Publisher: ASCE
Abstract: This paper used the fusion of an active-set method (ASM) and an interior point method (IPM), with a Newton method, to solve for the steady-state flows, heads, and outflows of a pressure-dependent water distribution system. ...
Particle Filter–Based Model for Online Estimation of Demand Multipliers in Water Distribution Systems under Uncertainty
Publisher: American Society of Civil Engineers
Abstract: Accurate modeling of water distribution systems is fundamental for planning and operating decisions in any water network. One important component that directly affects model accuracy is knowledge of nodal demands. Conventional ...
Calibration of Water Demand Multipliers in Water Distribution Systems Using Genetic Algorithms
Publisher: American Society of Civil Engineers
Abstract: Hydraulic models have been widely used for design, analysis, and operation of water distribution systems. As with all hydraulic models, water demands are one of the main parameters that cause the most uncertainty to the ...