A Hydraulic Simulation Model for Pipe Networks with Leakage Outflows and Pressure-Driven Demands

2007 ◽  
Author(s):  
Orazio Giustolisi ◽  
Zoran Kapelan ◽  
Dragan Savic
Keyword(s):  
Simulation Model ◽  
Hydraulic Simulation ◽  
Pipe Networks ◽  
Pressure Driven

scholarly journals Optimal Placement of Pressure Gauges for Water Distribution Networks Using Entropy Theory Based on Pressure Dependent Hydraulic Simulation

Entropy ◽  
2018 ◽  
Vol 20 (8) ◽  
pp. 576 ◽  
Author(s):  
Do Yoo ◽  
Dong Chang ◽  
Yang Song ◽  
Jung Lee
Keyword(s):  
Water Distribution ◽  
Pressure Gauge ◽  
Distribution Networks ◽  
Entropy Method ◽  
Water Distribution Networks ◽  
Optimal Placement ◽  
Hydraulic Simulation ◽  
Priority Order ◽  
The Impact ◽  
Pressure Driven

This study proposed a pressure driven entropy method (PDEM) that determines a priority order of pressure gauge locations, which enables the impact of abnormal condition (e.g., pipe failures) to be quantitatively identified in water distribution networks (WDNs). The method developed utilizes the entropy method from information theory and pressure driven analysis (PDA), which is the latest hydraulic analysis method. The conventional hydraulic approach has problems in determining the locations of pressure gauges, attributable to unrealistic results under abnormal conditions (e.g., negative pressure). The proposed method was applied to two benchmark pipe networks and one real pipe network. The priority order for optimal locations was produced, and the result was compared to existing approach. The results of the conventional method show that the pressure reduction difference of each node became so excessive, which resulted in a distorted distribution. However, with the method developed, which considers the connectivity of a system and the influence among nodes based on PDA and entropy method results, pressure gauges can be more realistically and reasonably located.

scholarly journals Direct Simulation Model of Concentrated Particulate Flow in Pressure-Driven Dead-End Microfiltration

2010 ◽  
Vol 43 (10) ◽  
pp. 815-828 ◽  
Author(s):  
Tsutomu Ando ◽  
Kazuki Akamatsu ◽  
Masahiro Fujita ◽  
Shin-ichi Nakao
Keyword(s):  
Simulation Model ◽  
Particulate Flow ◽  
Direct Simulation ◽  
Dead End ◽  
Pressure Driven

scholarly journals Hydraulic analysis of underground bioretention systems

2021 ◽  
Author(s):  
Sogol Bandehali
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Simulation Model ◽  
Low Impact Development ◽  
Hydraulic Model ◽  
Hydraulic Analysis ◽  
Hydraulic Simulation ◽  
Bioretention Cell ◽  
Design Options ◽  
Water Quality And Quantity

The conventional practices of urbanization significantly increase the flooding and water pollution. This is due to reduction in pervious areas. To minimize the problem, various concepts of low impact development have been implemented such as underground bioretention cells. The main intention of this research was to review different aspects of Low Impacts Developments (LIDs) especially bioretention cells and develop a hydraulic model to predict the distribution of runoff throughout the bioretention cell under different scenarios. In this study, the hydraulic simulation model was developed in Matlab in order to attain better understanding of bioretention systems. The hydraulic model was used to investigate the impacts of different design options on the distribution of flows over the entire bioretention cell. Understanding the effect of design options can be beneficial to improve the performance of bioretention systems and improving the water quality and quantity in developed areas.

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