Experimental validation of a quasi-explicit hydrodynamic model: Fishtailing instability of a single-point moored tanker in rigid-hawser configuration (2001)
- Authors:
- Autor USP: ARANHA, JOSE AUGUSTO PENTEADO - EP
- Unidade: EP
- Subjects: HIDRODINÂMICA; ESTRUTURA DE EMBARCAÇÕES
- Language: Inglês
- Abstract: The extended hydrodynamic model derived in Simos et al (2001), where the yaw velocity terms have been incorporated to the model proposed by Leite et al (1998) while preserving its quasi-explicit feature, is used here to study some typical dynamic problems of moored ships, specifically the fishtailing instability that may occur in a single-point mooring (SPM) system, Since the intention was to check the hydrodynamic model, the hawser was assumed rigid to avoid the complex dynamics that may occur when the actual hawser slackens and the obtained results were confronted with experimental ones, obtained at the IPT wave tank. The agreement is very good in the sense that not only the limit-cycle amplitudes are compatible but also the time series are very similar. For the VLCC model in ballasted condition (40%) the fishtailing instability occurs only for a relatively high current velocity and some Froude effect is then detectable. Using results from the static bifurcation experiment an ad hoc correction is proposed for such effect, showing a relatively close agreement between experiments and the theoretical model. This Froude effect correction is, however, not relevant for an actual SPM system subjected to a usual ocean current
- Imprenta:
- Publisher place: Jersey City
- Date published: 2001
- Source:
- Título do periódico: Journal of Ship Research
- ISSN: 0224502
- Volume/Número/Paginação/Ano: v.45, n.4, p.302-314, dez., 2001
-
ABNT
TANNURI, Eduardo Aoun et al. Experimental validation of a quasi-explicit hydrodynamic model: Fishtailing instability of a single-point moored tanker in rigid-hawser configuration. Journal of Ship Research, v. 45, n. 4, p. 302-314, 2001Tradução . . Disponível em: https://repositorio.usp.br/directbitstream/319db3f6-2f39-4cdf-b375-63a3ca509e0e/Aranha-2001-Experimental%20validation%20of%20a%20quasi%20ok.pdf. Acesso em: 20 abr. 2024. -
APA
Tannuri, E. A., Simos, A. N., Leite, A. J. de P., & Aranha, J. A. P. (2001). Experimental validation of a quasi-explicit hydrodynamic model: Fishtailing instability of a single-point moored tanker in rigid-hawser configuration. Journal of Ship Research, 45( 4), 302-314. Recuperado de https://repositorio.usp.br/directbitstream/319db3f6-2f39-4cdf-b375-63a3ca509e0e/Aranha-2001-Experimental%20validation%20of%20a%20quasi%20ok.pdf -
NLM
Tannuri EA, Simos AN, Leite AJ de P, Aranha JAP. Experimental validation of a quasi-explicit hydrodynamic model: Fishtailing instability of a single-point moored tanker in rigid-hawser configuration [Internet]. Journal of Ship Research. 2001 ;45( 4): 302-314.[citado 2024 abr. 20 ] Available from: https://repositorio.usp.br/directbitstream/319db3f6-2f39-4cdf-b375-63a3ca509e0e/Aranha-2001-Experimental%20validation%20of%20a%20quasi%20ok.pdf -
Vancouver
Tannuri EA, Simos AN, Leite AJ de P, Aranha JAP. Experimental validation of a quasi-explicit hydrodynamic model: Fishtailing instability of a single-point moored tanker in rigid-hawser configuration [Internet]. Journal of Ship Research. 2001 ;45( 4): 302-314.[citado 2024 abr. 20 ] Available from: https://repositorio.usp.br/directbitstream/319db3f6-2f39-4cdf-b375-63a3ca509e0e/Aranha-2001-Experimental%20validation%20of%20a%20quasi%20ok.pdf - A weathervane ship under wave and current action: an experimental verification of the wave drift damping formula
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