Effect of wave boundary layer on hydrodynamic forces on small diameter pipelines
Effect of wave boundary layer on hydrodynamic forces on small diameter pipelines
Effect of wave boundary layer on hydrodynamic forces on small diameter pipelines is speculated in this paper. It is found that use of the recommended calculation methods in DNV-RP-F109 leads to unrealistic predictions of high specific gravity (SG) requirements for small diameter pipelines subject to wave loading. Potential reasons for such high SG requirements under wave loading are speculated based on existing knowledge and experimental evidence, and a way forward is proposed. It is suspected that the unrealistic predictions are because the calculation methods ignore wave boundary layer effects on hydrodynamic forces.
Offshore pipeline, Stability, Wave boundary layer, Wave forces
26-30
Cheng, Liang
c4c2801b-0056-4116-8b10-33a232d2e376
An, Hongwei
53542f2c-e294-4e26-a581-344e646c72e6
Draper, Scott
efe46b7d-3989-403b-8b19-0b17dd54194f
White, Dave
a986033d-d26d-4419-a3f3-20dc54efce93
1 October 2016
Cheng, Liang
c4c2801b-0056-4116-8b10-33a232d2e376
An, Hongwei
53542f2c-e294-4e26-a581-344e646c72e6
Draper, Scott
efe46b7d-3989-403b-8b19-0b17dd54194f
White, Dave
a986033d-d26d-4419-a3f3-20dc54efce93
Cheng, Liang, An, Hongwei, Draper, Scott and White, Dave
(2016)
Effect of wave boundary layer on hydrodynamic forces on small diameter pipelines.
Ocean Engineering, 125, .
(doi:10.1016/j.oceaneng.2016.07.016).
Abstract
Effect of wave boundary layer on hydrodynamic forces on small diameter pipelines is speculated in this paper. It is found that use of the recommended calculation methods in DNV-RP-F109 leads to unrealistic predictions of high specific gravity (SG) requirements for small diameter pipelines subject to wave loading. Potential reasons for such high SG requirements under wave loading are speculated based on existing knowledge and experimental evidence, and a way forward is proposed. It is suspected that the unrealistic predictions are because the calculation methods ignore wave boundary layer effects on hydrodynamic forces.
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More information
Accepted/In Press date: 11 July 2016
e-pub ahead of print date: 10 August 2016
Published date: 1 October 2016
Keywords:
Offshore pipeline, Stability, Wave boundary layer, Wave forces
Identifiers
Local EPrints ID: 419537
URI: http://eprints.soton.ac.uk/id/eprint/419537
ISSN: 0029-8018
PURE UUID: 47648111-6875-4fae-9cb5-84c1cf6a42bf
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Date deposited: 13 Apr 2018 16:30
Last modified: 18 Mar 2024 03:42
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Contributors
Author:
Liang Cheng
Author:
Hongwei An
Author:
Scott Draper
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