Effects of the asymmetric riser and bilge keel arrangements on FPSO green water assessment

Wang, Shuo, Wang, Xin and Woo, Wai Lok (2019) Effects of the asymmetric riser and bilge keel arrangements on FPSO green water assessment. Applied Ocean Research, 86. pp. 166-176. ISSN 0141-1187

[img] Text
Wang et al - Effects of the asymmetric riser and bilge keel arrangements on FPSO green water assessment AAM.pdf - Accepted Version
Restricted to Repository staff only until 7 March 2020.
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.

Download (1MB)
Official URL: https://doi.org/10.1016/j.apor.2019.02.013

Abstract

This article aims to report important findings on how the asymmetric riser and bilge keel arrangements affect the motion response and green water assessment by using a real FPSO conversion project. Recently, the authors have proposed a practical approach for short-term and long-term green water prediction. In this paper, the method has been further extended to include the effect of truncated bilge keel by using Morrison elements. Numerical studies are conducted focusing on the effect induced by asymmetric riser arrangement and truncated bilge keels. Comparisons of short-term and long-term results between different models indicate that the FPSO’s motion is significantly affected by asymmetrically arranged appendages and attachments in a complicated way. The relative wave elevation is also affected by appendages and attachments, but not the same trend as the motion response. The effect of the asymmetric arrangement of risers and bilge keel on long-term relative wave elevation response has been captured by both traditional contour line approach and response-based analysis, but some discrepancy identified between the results from the two methods indicates the limitation of the traditional contour line approach.

Item Type: Article
Uncontrolled Keywords: green water; relative wave elevation; asymmetric risers; truncated bilge keel; response-based analysis; short-term and long-term prediction
Subjects: H300 Mechanical Engineering
H500 Naval Architecture
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Paul Burns
Date Deposited: 27 Feb 2019 16:02
Last Modified: 11 Mar 2019 15:15
URI: http://nrl.northumbria.ac.uk/id/eprint/38222

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence