... prediction ship motion simulation irregular wave ship free-running simulation drift force linearization method containership experimental data resistance speed loss ship maneuvering efficiency boundary value problem linearization Time-domain Approach for Speed Loss of Ship in Waves Jae...

... force, transverse force of a small scale piles cannot be ignored. In order to explore the interaction between different piles, experimental investigations of the interaction of irregular waves with small scale, vertical bottom-mounted pile group which has 9 piles in side by side arrangement have been...

... wind energy equilibrium position renewable energy irregular wave line force turbulent wind floating production system offshore projects planning and execution natural frequency statistical result semisubmersible offshore wind turbine semi-submersible platform wind turbine Performance...

... ABSTRACT Fuel consumption of ship has been of great interest due to the reinforced environmental regulations. Estimation of fuel consumption requires calculating the added resistance in actual irregular waves. However, most of relevant researches remain in regular wave since nonlinear...

... At present, there are two kinds of irregular waves studied. One is the long-crested wave, which can be understood as the combination of different regular waves with the same direction. Therefore, in recent years, the simulation of wave environment is mostly aimed at regular wave, and the simulation of long...

... ABSTRACT: New results of numerical hydrodynamic analysis of the novel offshore cross-flow vertical axis wind turbine with large floating rotor (WEMU design) are presented. The research goals are to investigate a spatial movement of rotary pontoon in incoming regular and irregular waves as well...

... consideration. mooring system irregular wave test experiment yaw instability irregular wave wave length midstream oil & gas fsru subsea system water depth turret turret force configuration liquified natural gas regular wave wave test gas monetization surge thiagarajan operation...

... ABSTRACT: The Bragg scattering of irregular waves propagating over rippled bed and rectified sinusoidal artificial bars is investigated in the present paper. Numerical simulation based on the EEMSE (Evolution Equation for Mild-Slope Equation) model including the wave-wave interaction...

... to design parameters such as operating range and rotating rate of fins as well as fin area, sectional shape and control gains. fin effect transfer function roll motion irregular wave roll reduction activation fin stabilizer system simulation experimental study model test performance...

... taking added mass forces and drag forces into consideration. subsea system coefficient fast oscillation sway frequency mooring system drag coefficient slow drift oscillation irregular wave drag force equation heave koterayama mass coefficient horizontal component slow oscillation...

... varying component has a long period and depends on the frequency difference in the wave components in an irregular waves. The magnitudes of the slowly varying forces may be relatively small compared with the first order wave exciting forces, but if the frequency of these forces approaches the ,natural...

...<t ;:0 1=0 Usually Cd and Cm are funollons of Re and KC numbers. but ,n the present model test the ohange of Re number is not so great (Re~5--35XI03). Then In the 'ollow.ng analysIs Cd and Cm are treated as funotions of KC number only. In the coexisting f,eld of wave and ourrent. the followIng def,n,t,on suggested by both author (1984) and Iwagakl (1984) should be used· KC number IS the product of 7t and the maximum wa1er partlole dIsplacement In one directIon w,th,n one wave period to pile diameter. I.e. or KC = SID u"r j -p- [sln7oosf] KC = 1t1u.cIT --V-- (8) when fU e I >u .. where; = arocosluel/u u. IS the amplitude of water partlole velooity in waves. T is wave perIod. Eq. 8 IS used for regular wave. For irregular waves. If takIng slgnlfioant wave heIght H1/3 and its relatIve wave period T1/3' the KC number IS represented as KCI/3'. Then I f taking if and I, H...