Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 10
... method gives an exact reproduction of the wave energy spectrum . 2.2.2 Random phases with Discrete Fourier Spectrum ( DFT ) In this method summation ( 1 ) is directly computed by adding the cosine functions . It results in a non ...
... method gives an exact reproduction of the wave energy spectrum . 2.2.2 Random phases with Discrete Fourier Spectrum ( DFT ) In this method summation ( 1 ) is directly computed by adding the cosine functions . It results in a non ...
Page 11
... methods except when using the Goda's method with 20 frequencies where a decrease of 2 % is noticed . The maximum wave heights tend to increase with the number of fre- quencies , and the maximum values are obtained with the FFT method ...
... methods except when using the Goda's method with 20 frequencies where a decrease of 2 % is noticed . The maximum wave heights tend to increase with the number of fre- quencies , and the maximum values are obtained with the FFT method ...
Page 58
... method , and many researcher ( e.g. Bostron and Overvik ( 1986 ) et al ) have used this method to determine the force coefficients on vertical cylinder . In practice usage , since the band width of wave spectrum is quite narrow , the ...
... method , and many researcher ( e.g. Bostron and Overvik ( 1986 ) et al ) have used this method to determine the force coefficients on vertical cylinder . In practice usage , since the band width of wave spectrum is quite narrow , the ...
Contents
OCEAN WAVES | 1 |
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 25 |
Copyright | |
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acceleration added mass amplitude analysis boundary conditions calculated circular cylinder computed cosh crest cylinder array damping coefficient damping factor density diffraction domain drag coefficient drag force drift force dynamic effect equation estimated flow fluid force coefficients forces acting forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave inertia coefficients integral irregular Kc number lift force linear load low-frequency low-frequency oscillation maximum measured method motion nonlinear obtained offshore structures oscillatory parameters pile plate potential flow predicted quadratic rad/sec radiation condition ratio regular waves response Sarpkaya second order second-order semisubmersible shown in Figure simulation solution spectral density spectrum surface elevation surge swing tank tanker transfer function vector velocity potential viscous vortex shedding vortices water depth wave amplitude wave drift damping wave excitation wave force wave frequency wave groups wave height wave number wave period wave power