Water hammer simulation method in pressurized pipeline with a moving isolation device Zhang, K, Zeng, Wei, Simpson, AR, Zhang, S and Wang, C 2021, Water hammer simulation method in pressurized pipeline with a moving isolation device, Water, vol. 13, no. 13, pp. 1-17, doi: 10.3390/w13131794. Attached Files Name Description MIMEType Size Downloads Title Water hammer simulation method in pressurized pipeline with a moving isolation device Author(s) Zhang, K Zeng, Wei Simpson, AR Zhang, S Wang, C Journal name Water Volume number 13 Issue number 13 Start page 1 End page 17 Total pages 17 Publisher MDPI AG Place of publication Basel, Switzerland Publication date 2021-07-01 ISSN 2073-4441 Keyword(s) Hydraulic transient Water hammer simulation Dynamic mesh Subsea pressurized pipeline Summary Smart isolation devices (SIDs) are commonly used in pressurized subsea pipelines that need to be maintained or repaired. The sudden stoppage of the SID may cause large water hammer pressures, which may threaten both the pipeline and the SID. This paper proposes a simulation method by using a coupled dynamic mesh technique to simulate water hammer pressures in the pipeline. Unlike other water hammer simulations, this method is the first to be used in the simulation in pipelines with a moving object. The implicit method is applied to model the moving SID since it has the mutual independence between the space step and the time step. The movement of the SID is achieved by updating the size of the computational meshes close to the SID at each time step. To improve the efficiency of the simulation and the ability of handling complex boundary conditions, the pipe sections far away from the SID can also be simulated by using the explicit Method of Characteristics (MOC). Verifications were conducted using the simulated results from the Computational Fluid Dynamics (CFD) numerical simulation. Two scenarios have been studied and the comparisons between the simulated results by using the dynamic meshes in 1D methods and those by the CFD simulation show a high correlation, thus validating the new method proposed in this paper. Language eng DOI 10.3390/w13131794 HERDC Research category C1.1 Refereed article in a scholarly journal Free to Read? Yes Persistent URL http://hdl.handle.net/10536/DRO/DU:30164531 Document type: Journal Article Collections: Faculty of Science, Engineering and Built Environment School of Engineering Open Access Collection Related Links Link Description Link to full-text (open access)   Connect to published version Go to link with your DU access privileges   Connect to Elements publication management system Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Thu, 17 Mar 2022, 19:52:15 EST Thu, 17 Mar 2022, 19:55:14 EST Fri, 18 Mar 2022, 15:55:07 EST Fri, 18 Mar 2022, 16:11:49 EST Fri, 25 Mar 2022, 12:28:52 EST Fri, 25 Mar 2022, 15:51:28 EST Fri, 25 Mar 2022, 15:57:23 EST Fri, 08 Apr 2022, 17:37:43 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 13 Abstract Views, 2 File Downloads  -  Detailed Statistics Created: Thu, 17 Mar 2022, 19:55:14 EST