Coronado-Hernández, ÓE., Fuertes-Miquel, V.S., Iglesias-Rey, P.L. et al. (3 more authors) (2022) Analysis of friction models during simulations of filling processes in single pipelines. In: Congresos de la Universitat Politècnica de València. 2nd WDSA/CCWI Joint Conference, 18-22 Jul 2022, València, Spain. Universitat Politècnica de València
Abstract
The analysis of filling processes in pressurized pipelines has been conducted using a steady friction model in the implementation of governing equations. This research is focused on the case of a filling process of a single pipeline without an air valve. Three equations were used to represent the phenomenon: (i) a rigid water column approach, which describes the water movement along the water system; (ii) a piston flow model, which assumes a perpendicular air-water interface to the main direction of the pipe; and (iii) a polytropic model for representing the thermodynamic behaviour of an entrapped air pocket. This research studies the filling processes occurrence using equations of steady and unsteady friction models, where Moody, Wood, Hazen-Williams, and Swamee-Jain equations are analysed. The analysis is applied to a case study of a single pipe of a total length of 1000 m with an internal diameter of 595 mm variation of pressure surges in the implementation of these formulations. Results confirm that there is a minimum discrepancy between steady and unsteady friction models since values of pressure surges pattern are similar.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an open access conference paper under the terms of the Creative Commons Attribution License (CC-BY-NC-ND). |
Keywords: | Filling process; unsteady; friction models; transient flow |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Feb 2025 14:23 |
Last Modified: | 13 Feb 2025 14:23 |
Published Version: | https://doi.org/10.4995/wdsa-ccwi2022.2022.14819 |
Status: | Published |
Publisher: | Universitat Politècnica de València |
Identification Number: | 10.4995/wdsa-ccwi2022.2022.14819 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:223187 |