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 51
... range 2.5x105 < Re < 1x106 with k / D = 1/50 and 1/350 . Figures 1 and 2 , as well as the plot of Justesen's entire data , show that the variations of Cd and Cm with Re are indeed very weak , at least in the said K range . In the range ...
... range 2.5x105 < Re < 1x106 with k / D = 1/50 and 1/350 . Figures 1 and 2 , as well as the plot of Justesen's entire data , show that the variations of Cd and Cm with Re are indeed very weak , at least in the said K range . In the range ...
Page 59
... range of is between [ - , 1 , and the value range of is between [ , ] correspondingly . When = 0 , = TL / 2 . Applying the ' , the uniformed force coefficients Cp ' and CM ' are defined as CD ' = CD ( 1 - cos ' ' ) Cư ' = Cusin® ' ( 14 ) ...
... range of is between [ - , 1 , and the value range of is between [ , ] correspondingly . When = 0 , = TL / 2 . Applying the ' , the uniformed force coefficients Cp ' and CM ' are defined as CD ' = CD ( 1 - cos ' ' ) Cư ' = Cusin® ' ( 14 ) ...
Page 122
... ranges chosen to simulate P.M. spectrum , four different runs ( four different rms values of wave height ) were made in each range . From the measured water surface elevations , water surface spectrum ( realised ) , probability ...
... ranges chosen to simulate P.M. spectrum , four different runs ( four different rms values of wave height ) were made in each range . From the measured water surface elevations , water surface spectrum ( realised ) , probability ...
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