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Keywords: spectrum
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Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-288
... superpositions and transition function type to study and compare with the wave spectrum. The effects of various factors on the accuracy of wave simulation are analyzed and the appropriate wave simulation strategy is finally proposed. The results show that the simulated irregular wave inversion results agree well...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-294
... problem that arises with following waves when converting the encountered wave spectrum of a travelling vessel to an absolute wave spectrum due to the ambiguous Doppler shift (e.g. Iseki and Ohtsu (2000)). It seems to the authors of this paper, that a new and ongoing wave of interest for SSE using ship...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-588
.... The greater the kurtosis of IMF, the ratios. Fig. 2 shows the simulated signal y(t) and the time- more pulse components are included. Finally, the IMF with the largest kurtosis is used as the input of envelope demodulation analysis, and then the envelope spectrum of the signal reflecting domain waveforms...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-380
... simulate the law of wave motion under actual conditions. fluid dynamics wave height nonlinear wave elimination numerical wave tank theoretical value surface elevation grid reservoir simulation second-order stoke wave time step engineering wave generation freak wave spectrum equation...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-045
... ABSTRACT A novel multivariate coherent effect-based estimation method of wind loads is proposed to consider the coherent effect of wind loads in rotating and nonrotating regions during blade rotation. Firstly, a wind spectrum model with rotation effect is derived. Then multivariate coherence...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-361
... of the HOS-ocean model based on the HOS method are introduced. Then the accuracy and stability of the HOS-ocean model are verified by a standard example. After that, the formation and evolution of two-dimensional and three-dimensional irregular waves are simulated based on JONSWAP spectrum and ITTC spectrum...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-117
... soil behavior breakwater spectrum cross-anisotropic soil excess pore pressure permeability reservoir characterization random wave jeng seabed response wave-induced soil response upstream oil & gas harbor entrance engineering soil response frequency spectrum Proceedings...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-349
... to the frequency domain from the time domain. Secondly, the effect of the wave frequency component on the ship motion responses is analyzed. The natural frequency of the ship and peak of the wave frequency have strong responses on the motion spectrum in irregular waves. Finally, the effect of the wave direction...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-059
... damping levels vary with sea states and the results obtained with experiments and simulations are compared, focusing on the heave, roll and pitch response spectrum and short-term statistics, it is shown that the frequency spectrum analysis method may underestimates the response and ignores the pitch-surge...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-255
... spectrum measured through an indoor wave tank experiment are used for the study. The measured time series were transformed to frequency domain by the fast Fourier transform and divided into five bands by filtering method. With the time series corresponding to each band, the LSSVM model is trained...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3238
... calculation navigation channel coefficient frequency critical angle engineering wave spectrum wave spectrum filtration marine transportation artemis model reflection kantarzhi incident wave angle of approach suitable wave wave recorder approach channel wave height frequency...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3240
... renewable energy alpe maritime boundary condition cross-shore profile significant wave height surface elevation spectrum computed free surface elevation wave condition contingency planning water level free surface elevation xbeach model funwave-tvd model equation Proceedings of the Thirty...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3262
... from wind to waves; weakly nonlinear spectrum are taken from numerical simulations, although a numerical interaction in spectrum of wind waves; wave energy dissipation. model can often provide much more information. Especially if this model is spectral. Pool wave generator reproduces regular test...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1254
... are adopted with the return period of The oil containment boom is one of the important equipment to prevent 1 and 10 years based on the JONSWAP spectrum. The wave load on the oil spill from spreading. It is of great significance to study the containment boom can be obtained from the simulation and be imported...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1249
...) marine site, where the arrangement is situated, is characterized by its 3q y local wave climate; namely, a set of sea states, each of which is Mean Water described by a wave spectrum of significant wave height Hs and peak PAq b Level (MWL) period Tp and has an annual probability of occurrence Pr (Hs, Ts...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3131
... of interest. However, measurements of spectral data are rarely available, and, for this reason, empirical correlations from literature are often used. In this study, Jonswap spectral formulation have been employed, with Mitsuyasu-like directional spreading function. For Jonswap spectrum, the relationships...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3143
... wave force wavelength numerical wave tank amplitude front column upstream oil & gas cylinder peak wave force wave load interaction frequency spectrum spectrum Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece, June...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3133
... and are faced to man-made ships or infrastructures directly. While waves have a narrow-band spectrum mostly(DNVGL, 2019), they change their physical quantities slowly, and so accurate prediction of waves is quite difficult since numerous factors affect the wave generation mechanism in the ocean. Various wave...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1174
... depth layer water column double-diffusive convection turbulent kinetic energy dissipation rate deployment elevation spectrum turbulence Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece, June 20 25, 2021 Copyright © 2021...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1198
... performance boundary layer actuator line model radial momentum transport inflow fluctuation power output wind farm counter-rotating configuration rotation direction spectrum Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece...

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