Hydraulic performance analysis of sewer systems with uncertain parameters | Zendy

Hosseini Seyed Mahmoud | Zendy; Ali Ghasemi | Zendy

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Hydraulic performance analysis of sewer systems with uncertain parameters

Author(s) -

Hosseini Seyed Mahmoud,

Ali Ghasemi

Publication year - 2011

Publication title -

journal of hydroinformatics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.654

H-Index - 50

eISSN - 1465-1734

pISSN - 1464-7141

DOI - 10.2166/hydro.2011.129

Subject(s) - fuzzy logic , reliability (semiconductor) , computer science , quality (philosophy) , hydraulic machinery , reliability engineering , engineering , artificial intelligence , mechanical engineering , power (physics) , philosophy , physics , epistemology , quantum mechanics

In this paper, a flexible fuzzy model is proposed for the hydraulic performance analysis of separate domestic sewer systems. In the proposed model, all modeling outputs such as discharge, velocity and depth are developed as fuzzy numbers by taking into account all the available information and expert knowledge about the basic design/analysis parameters. The fuzzy outputs are then combined with performance assessment curves to calculate the hydraulic performance values. The proposed model was applied to a part of the sewer system of a city in Iran, and performance graphs were plotted. Such graphs can be used by design engineers and operation managers to improve the design quality, reliability and the performance of a system with uncertain parameters. The analysis results can also be used in decision-making and identifying priorities to develop rehabilitation strategies.

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