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Type: Conference paper
Title: Unsteady friction models for conservative solution schemes in transient pipe flows
Author: Kim, Y.
Simpson, A.
Lambert, M.
Citation: CCWI 2005 : proceedings of the eighth International Conference on Computing and Control for the Water Industry, Exeter, UK / edited by Dragan Savic
Publisher: University of Exeter, Centre for Water Systems
Issue Date: 2005
ISBN: 095391402X
Conference Name: International Conference on Computing and Control for the Water Industry (8th : 2005 : Exeter, U.K.)
Statement of
Young-il Kim, Angus R. Simpson & Martin F. Lambert
Abstract: The accurate and appropriate simulation of pressure transients (or unsteady flows) in pipeline systems is an essential requirement for many applications. To improve the sensitivity and flexibility of transient analysis, this research uses a conservative solution scheme including all terms in basic equations. Understanding the unsteady hydraulic resistance behavior is of great importance for the dynamic calculation. Various unsteady friction models based on weighting functions have been incorporated and modified in the conservative solution scheme. For transients in compressible flow, the compressibility of gas is the dominant physical property. The proposed model in this research can simulate both water and gas transient flow and has been verified by undertaking laboratory experiments.
Keywords: Transients; unsteady flow; conservative solution scheme; unsteady friction; compressible flow; gas transients
Rights: Copyright status unknown
RMID: 0020075536
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Appears in Collections:Civil and Environmental Engineering publications
Environment Institute publications

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