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http://hdl.handle.net/123456789/25301
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DC Field | Value | Language |
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dc.contributor.author | Mustaffa Kamal, Iwan | - |
dc.contributor.author | Rasahidan, Muhammad Safwan | - |
dc.contributor.author | Adenan Ahmed, Yaseen | - |
dc.contributor.author | UniKL MIMET | - |
dc.date.accessioned | 2022-01-28T03:28:51Z | - |
dc.date.available | 2022-01-28T03:28:51Z | - |
dc.date.issued | 2022-01-28 | - |
dc.identifier.isbn | 978-981-15-0002-2 | - |
dc.identifier.uri | http://hdl.handle.net/123456789/25301 | - |
dc.description | This article indexed by scopus | en_US |
dc.description.abstract | The drag or the resistance contribution of appendages such as brackets, skegs, shafts, rudders and fin stabilizers fitted to R/V Athena were investigated. The issue in estimating the appendage drag is that laminar flows occurred at lower Reynolds number typically in ship model used for ship hydrodynamic testing in a towing tank. In full-scale ship, the flow is usually turbulent. Uncertainties when scaling the model result to full-scale may arise as the flow regime in both cases are not similar, hence the full-scale estimate will be inaccurate. One method to resolve this issue is to scale the appendage drag using a fixed fraction which is known as the ‘Beta’ approach. The aim of this investigation was to determine the value of beta. R/V Athena was chosen as the case study in this investigation. The results obtained from SHIPFLOW 6.3 shows that the drag in model scale increased at 14% when fully appended. The drag in full-scale increased at 11% when fully appended. It was observed that the skeg contributed to the highest percentage of drag at about 7–8% of the total drag. Finally, the value of beta was estimated to be in between 0.38 and 0.39. | en_US |
dc.language.iso | en | en_US |
dc.subject | Reynolds scale effect | en_US |
dc.subject | Beta approach | en_US |
dc.subject | Appendage drag | en_US |
dc.subject | CFD | en_US |
dc.title | Scaling of RV Athena’s Appendage Drag Using CFD | en_US |
dc.type | Book chapter | en_US |
dc.conference.year | 2020 | en_US |
Appears in Collections: | Conference Paper |
Files in This Item:
File | Description | Size | Format | |
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Scaling of RV Athena’s Appendage Drag Using CFD.pdf | 106.13 kB | Adobe PDF | View/Open Request a copy |
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