First- and Second-Order Sensitivities of Steady-State Solutions to Water Distribution Systems

First-order approximations have been used with some success for criticality analysis; sensitivity analysis of physical networks, such as water distribution systems; and uncertainty propagation of model parameters. Certain limitations have been reported regarding the accuracy of the results, particul...

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Bibliographic Details
Main Authors: Olivier Piller, Sylvan Elhay, Jochen W. Deuerlein, Angus R. Simpson
Format: Article
Language:English
Published: MDPI AG 2024-09-01
Series:Engineering Proceedings
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Online Access:https://www.mdpi.com/2673-4591/69/1/165
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Summary:First-order approximations have been used with some success for criticality analysis; sensitivity analysis of physical networks, such as water distribution systems; and uncertainty propagation of model parameters. Certain limitations have been reported regarding the accuracy of the results, particularly when non-linearity is dominant. In this paper, we show how to efficiently derive the first- and second-order sensitivities with respect to variation in their parameters. This makes it possible to improve the first-order estimate when necessary. The method is illustrated on a small example system.
ISSN:2673-4591