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https://hdl.handle.net/2440/80948
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DC Field | Value | Language |
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dc.contributor.author | Vitkovsky, J. | - |
dc.contributor.author | Simpson, A. | - |
dc.contributor.author | Lambert, M. | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Conference on Water Resources Planning and Management, Roanoke, Virginia, USA, 2002: 10 p | - |
dc.identifier.uri | http://hdl.handle.net/2440/80948 | - |
dc.description.abstract | The inverse transient method has been verified for leak detection from a laboratory pipeline using a least-squares minimization. The process determines the size and location of a leak. In previous numerical studies the Levenberg-Marquardt algorithm and genetic algorithms were used to perform this minimization. In the current experiment, the Levenberg-Marquardt algorithm yields incorrect leak locations and magnitudes. The complexity of the objective function causes the Levenberg-Marquardt algorithm to fail. The inverse transient method has been verified for leak detection from a laboratory pipeline using a least-squares minimization. The process determines the size and location of a leak. In previous numerical studies the Levenberg-Marquardt algorithm and genetic algorithms were used to perform this minimization. In the current experiment, the Levenberg-Marquardt algorithm yields incorrect leak locations and magnitudes. The complexity of the objective function surface causes the Levenberg-Marquardt algorithm to fail. The use of the shuffled complex evolution algorithm—a more global minimization algorithm—improves results, however convergence is slow. A systematic approach to the application of the Levenberg-Marquardt algorithm determines the correct leak location and magnitude more efficiently. | - |
dc.description.statementofresponsibility | John P. Vítkovský, Angus R. Simpson, and Martin F. Lambert | - |
dc.language.iso | en | - |
dc.publisher | ASCE | - |
dc.rights | Copyright status unknown | - |
dc.title | Minimization algorithms and experimental inverse transient leak detection | - |
dc.type | Conference item | - |
dc.contributor.conference | Conference on Water Resources Planning and Management (2002 : Roanoke, Virginia, USA) | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Simpson, A. [0000-0003-1633-0111] | - |
dc.identifier.orcid | Lambert, M. [0000-0001-8272-6697] | - |
Appears in Collections: | Aurora harvest 4 Civil and Environmental Engineering publications |
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