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Numerical investigation into water entry problems of a flat plate with air pockets
Citation
O'Connor, C and Mohajernasab, S and Abdussamie, N, Numerical investigation into water entry problems of a flat plate with air pockets, Journal of Ocean Engineering and Science ISSN 2468-0133 (2022) [Refereed Article]
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Copyright Statement
© 2022 Shanghai Jiaotong University. Published by Elsevier B.V. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC-ND 4.0) License (https://creativecommons.org/licenses/by-nc/4.0/).
Abstract
Computational Fluid Dynamics (CFD) investigations into water entry problems of a rigid flat plate with air pockets were systematically conducted. The Volume of Fluid (VOF) model was utilised to capture localised slamming phenomena that occur during, and post-impact events. The model's geometry was modified to include a pocket on the slamming impact surface to investigate the effect of air entrapment on the magnitude and distribution of slamming forces and pressures. A parametric study was conducted on the geometric parameters of the modelled pocket by altering its area, depth, and volume to examine the response of slamming force and pressure loading under several impact velocities. The numerical results of slamming forces and pressures were in good agreement with experimental drop test measurements (with relative error of -6% and 7% for the magnitude of slamming force and pressure, respectively). The numerical results proved that the peak pressure is proportional to the magnitude of impact velocity squared (Pmax α V2).
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | marine structures, slamming, air entrapment, computational fluid dynamics, drop tests |
| Research Division: | Engineering |
| Research Group: | Maritime engineering |
| Research Field: | Ocean engineering |
| Objective Division: | Transport |
| Objective Group: | Water transport |
| Objective Field: | Water safety |
| UTAS Author: | O'Connor, C (Mr Casey O'Connor) |
| UTAS Author: | Mohajernasab, S (Mr Saeed Mohajernasab) |
| UTAS Author: | Abdussamie, N (Dr Nagi Abdussamie) |
| ID Code: | 150724 |
| Year Published: | 2022 |
| Deposited By: | NC Maritime Engineering and Hydrodynamics |
| Deposited On: | 2022-06-26 |
| Last Modified: | 2022-09-20 |
| Downloads: | 4 View Download Statistics |
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