Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/46856
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Type: Journal article
Title: Discrete blockage detection in pipelines using the frequency response diagram: Numerical study
Author: Lee, P.
Vitkovsky, J.
Lambert, M.
Simpson, A.
Liggett, J.
Citation: Journal of Hydraulic Engineering, 2008; 134(5):658-663
Publisher: ASCE-Amer Soc Civil Engineers
Issue Date: 2008
ISSN: 0733-9429
1943-7900
Statement of
Responsibility: 
Pedro J. Lee, John P. Vítkovský, Martin F. Lambert, Angus R. Simpson, and James A. Liggett
Abstract: This paper proposes the use of fluid transients as a noninvasive technique for locating blockages in transmission pipelines. By extracting the behavior of the system in the form of a frequency response diagram, discrete blockages within the pipeline were shown to induce an oscillatory pattern on the peaks of this response diagram. This pattern can be related to the location and size of the blockage. A simple analytical expression that can be used to detect, locate, and size discrete blockages is presented, and is shown able to cater for multiple blockages existing simultaneously within the system. The structure of the expression suggests that the proposed technique can be extended to situations where system parameters may not be known to a high accuracy and also to more complex network scenarios, although future studies may be required to verify these possibilities.
Keywords: Frequency response; Linear systems; Transients; Water pipelines; Resonance; Numerical analysis
Description: © 2008 American Society of Civil Engineers
RMID: 0020080520
DOI: 10.1061/(ASCE)0733-9429(2008)134:5(658)
Appears in Collections:Civil and Environmental Engineering publications
Environment Institute publications

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