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Pregled bibliografske jedinice broj: 1090838

CFD simulations for surf-riding occurrence assessment


Begović, Ermina; Gatin, Inno; Jasak, Hrvoje; Rinauro, Barbara
CFD simulations for surf-riding occurrence assessment // Ocean engineering, 218 (2020), 107975, 16 doi:10.1016/j.oceaneng.2020.107975 (međunarodna recenzija, članak, ostalo)


CROSBI ID: 1090838 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
CFD simulations for surf-riding occurrence assessment

Autori
Begović, Ermina ; Gatin, Inno ; Jasak, Hrvoje ; Rinauro, Barbara

Izvornik
Ocean engineering (0029-8018) 218 (2020); 107975, 16

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo

Ključne riječi
Surf-riding ; Bifurcation analysis ; OpenFOAM CFD simulations ; OpenFOAM CFD simulations ; Second Generation Intact Stability Criteria

Sažetak
Surf-riding phenomenon occurs when a ship sailing in following waves is accelerated to wave celerity. In this paper, surf-riding occurrence is studied for the parent hull of the Systematic Series D by 3 degrees of freedom (DOF) CFD simulations. Simulation cases are chosen following IMO recommendations for a wavelength to ship length range and following IMO criterion for ship speed cases. Initial conditions for simulations are obtained from 1-DOF surge motion equation solved by bifurcation analysis. The aim is to define surf-riding limits for ship operability with a less conservative approach, taking into account force changes in waves compared to the one used in the 1-DOF model, which considers calm water approximations. After defining surf-riding boundaries in terms of wave heights for different wavelengths and ship speeds, calculated forces are analysed to evaluate the magnitude and trend of non-linear effects due to wave elevation and ship-wave interaction. A detailed analysis is conducted on resistance, thrust, and wave forces in surging and surf-riding conditions, comparing the applied methodologies. The introduction of wave velocity field influence in the thrust force and the calculation of Froude-Krylov wave-force up to actual wave profile have been discussed and identified as possible improvements of 1-DOF approach.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja



POVEZANOST RADA


Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb

Profili:

Avatar Url Inno Gatin (autor)

Avatar Url Hrvoje Jasak (autor)

Avatar Url Ermina Begović (autor)

Citiraj ovu publikaciju

Begović, Ermina; Gatin, Inno; Jasak, Hrvoje; Rinauro, Barbara
CFD simulations for surf-riding occurrence assessment // Ocean engineering, 218 (2020), 107975, 16 doi:10.1016/j.oceaneng.2020.107975 (međunarodna recenzija, članak, ostalo)
Begović, E., Gatin, I., Jasak, H. & Rinauro, B. (2020) CFD simulations for surf-riding occurrence assessment. Ocean engineering, 218, 107975, 16 doi:10.1016/j.oceaneng.2020.107975.
@article{article, year = {2020}, pages = {16}, DOI = {10.1016/j.oceaneng.2020.107975}, chapter = {107975}, keywords = {Surf-riding, Bifurcation analysis, OpenFOAM CFD simulations, OpenFOAM CFD simulations, Second Generation Intact Stability Criteria}, journal = {Ocean engineering}, doi = {10.1016/j.oceaneng.2020.107975}, volume = {218}, issn = {0029-8018}, title = {CFD simulations for surf-riding occurrence assessment}, keyword = {Surf-riding, Bifurcation analysis, OpenFOAM CFD simulations, OpenFOAM CFD simulations, Second Generation Intact Stability Criteria}, chapternumber = {107975} }
@article{article, year = {2020}, pages = {16}, DOI = {10.1016/j.oceaneng.2020.107975}, chapter = {107975}, keywords = {Surf-riding, Bifurcation analysis, OpenFOAM CFD simulations, OpenFOAM CFD simulations, Second Generation Intact Stability Criteria}, journal = {Ocean engineering}, doi = {10.1016/j.oceaneng.2020.107975}, volume = {218}, issn = {0029-8018}, title = {CFD simulations for surf-riding occurrence assessment}, keyword = {Surf-riding, Bifurcation analysis, OpenFOAM CFD simulations, OpenFOAM CFD simulations, Second Generation Intact Stability Criteria}, chapternumber = {107975} }

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