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 37
WIND , WAVES AND CURRENTS AT THE TEST FIELD OF FLOATING PLATFORM " POSEIDON " S. Ohmatsu , S. Kato , and R. Takai Ocean Engineering Division Ship Research Institute , Ministry of Transport Tokyo , Japan K. Sekita Nippon Steel ...
WIND , WAVES AND CURRENTS AT THE TEST FIELD OF FLOATING PLATFORM " POSEIDON " S. Ohmatsu , S. Kato , and R. Takai Ocean Engineering Division Ship Research Institute , Ministry of Transport Tokyo , Japan K. Sekita Nippon Steel ...
Page 38
... wind speed and Fig.3.3 shows wind roses for each seasons . These figures are obtained from regular time interval measurement through whole year . From these figures we can see following features ; a ) In winter , we have very frequentry ...
... wind speed and Fig.3.3 shows wind roses for each seasons . These figures are obtained from regular time interval measurement through whole year . From these figures we can see following features ; a ) In winter , we have very frequentry ...
Page 40
... wind , however it is difficult to distin- guish these components in general . 5.1 Current Meter Impeller type current meter was hung by wire rope at 10 m underwater from upperdeck of POSEIDON as shown in Fig.3.1 . The weight of current ...
... wind , however it is difficult to distin- guish these components in general . 5.1 Current Meter Impeller type current meter was hung by wire rope at 10 m underwater from upperdeck of POSEIDON as shown in Fig.3.1 . The weight of current ...
Contents
OCEAN WAVES | 1 |
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 25 |
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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