The effect of flow stratification on ship performance : a numerical study
Reid, Patrick and Terziev, Momchil and Tezdogan, Tahsin and Incecik, Atilla (2024) The effect of flow stratification on ship performance : a numerical study. Ships and Offshore Structures. pp. 1-13. ISSN 1754-212X (https://doi.org/10.1080/17445302.2024.2312729)
Preview |
Text.
Filename: Reid-etal-SOS-2023-The-effect-of-flow-stratification-on-ship-performance.pdf
Final Published Version License: Download (3MB)| Preview |
Abstract
If a layer of low-density water settles on top of higher density water, such as fresh water melting from a glacier and settling on top of colder seawater, a body of water can stratify into stable, distinct layers. A vessel advancing in such a stratified fluid can generate internal waves between these layers. The generation of internal waves requires energy and thus increases the resistance experienced by the vessel, a phenomenon known as the dead water effect which can result in a severe reduction in speed and loss of steering power. This study uses Computational Fluid Dynamics (CFD) to investigate the increase in ship resistance caused by the dead water effect. The results show that the presence of a stratified flow can increase total resistance approximately sixfold in extreme conditions. At standard operating conditions, total resistance may increase by approximately 6% as a result of flow stratification.
ORCID iDs
Reid, Patrick, Terziev, Momchil ORCID: https://orcid.org/0000-0002-1664-6186, Tezdogan, Tahsin and Incecik, Atilla;-
-
Item type: Article ID code: 87162 Dates: DateEvent22 February 2024Published22 February 2024Published Online3 November 2023Accepted1 August 2022SubmittedSubjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering Department: Faculty of Engineering Depositing user: Pure Administrator Date deposited: 03 Nov 2023 13:43 Last modified: 03 Sep 2024 01:09 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/87162