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Frequency-domain modeling of transients in pipe networks with compound nodes using a Laplace-domain admittance matrix

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dc.contributor.authorZecchin, A.
dc.contributor.authorLambert, M.
dc.contributor.authorSimpson, A.
dc.contributor.authorWhite, L.
dc.date.issued2010
dc.description.abstractAn alternative to modeling the transient behavior of pipeline systems in the time domain is to model these systems in the frequency domain using Laplace transform techniques. A limitation with traditional frequency-domain pipeline models is that they are only able to deal with systems of a limited class of configuration. Despite the development of a number of recent Laplace-domain network models for arbitrarily configured systems, the current formulations are designed for systems comprised only of pipes and simple node types such as reservoirs and junctions. This paper presents a significant generalization of existing network models by proposing a framework that allows not only complete flexibility with regard to the topological structure of a network, but also, encompasses nodes with dynamic components of a more general class (such as air vessels, valves, and capacitance elements). This generalization is achieved through a novel decomposition of the nodal dynamics for inclusion into a Laplace-domain network admittance matrix. A symbolic example is given demonstrating the development of the network admittance matrix and numerical examples are given comparing the proposed method to the method of characteristics for 11-pipe and 51-pipe networks.
dc.description.statementofresponsibilityAaron C. Zecchin, Martin F. Lambert, Angus R. Simpson, and Langford B. White
dc.identifier.citationJournal of Hydraulic Engineering, 2010; 136(10):739-755
dc.identifier.doi10.1061/(ASCE)HY.1943-7900.0000248
dc.identifier.issn0733-9429
dc.identifier.issn1943-7900
dc.identifier.orcidZecchin, A. [0000-0001-8908-7023]
dc.identifier.orcidLambert, M. [0000-0001-8272-6697]
dc.identifier.orcidSimpson, A. [0000-0003-1633-0111]
dc.identifier.orcidWhite, L. [0000-0001-6660-0517]
dc.identifier.urihttp://hdl.handle.net/2440/62150
dc.language.isoen
dc.publisherASCE-Amer Soc Civil Engineers
dc.rights© ASCE 2010
dc.source.urihttps://doi.org/10.1061/(asce)hy.1943-7900.0000248
dc.subjectHydraulic transients
dc.subjectPipeline networks
dc.subjectLaplace domain
dc.subjectFrequency domain
dc.titleFrequency-domain modeling of transients in pipe networks with compound nodes using a Laplace-domain admittance matrix
dc.typeJournal article
pubs.publication-statusPublished

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