Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 74
... layer model is used for determining the time varying shear stresses and the movement of the discrete vortices between the first grid point and the sur- face of the cylinders . The boundary layer analysis has focused on the development ...
... layer model is used for determining the time varying shear stresses and the movement of the discrete vortices between the first grid point and the sur- face of the cylinders . The boundary layer analysis has focused on the development ...
Page 75
Hydraulic Rough Boundary Layer In the case of the rough boundary layer the velocity profile is described by : V = V / int 2 + 11 ( 21 ) V = V in [ 30 +1 ] K k , where K = 0.4 V. Karman's constant . ( 15 ) This velocity profile is ...
Hydraulic Rough Boundary Layer In the case of the rough boundary layer the velocity profile is described by : V = V / int 2 + 11 ( 21 ) V = V in [ 30 +1 ] K k , where K = 0.4 V. Karman's constant . ( 15 ) This velocity profile is ...
Page 76
... layer it is found that the total amount of rotation in the boundary layer is : of the velocity profile , this means that the vortices are released when Y is greater than one mesh spacing , or in other words when the centre of the ...
... layer it is found that the total amount of rotation in the boundary layer is : of the velocity profile , this means that the vortices are released when Y is greater than one mesh spacing , or in other words when the centre of the ...
Contents
VORTEX SHEDDING AND VIBRATION | 187 |
OCEAN WAVES AND CURRENT | 209 |
COMPUTATIONAL METHODS | 247 |
Copyright | |
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added mass amplitude analysis approximately average body boundary condition cable calculated circular cylinder components computed correlation density diffraction displacement distribution drag coefficient dynamic effects Ekofisk Engineering experimental field Figure finite element floating flow fluid free surface frequency domain function Green function horizontal hydrodynamic hydrodynamic forces incident wave integral equation irregular waves length lift force linear load low-frequency matrix maximum measured method mode mode shapes mooring motion natural frequency nonlinear obtained Ocean Offshore Structures OMAE open boundary oscillation parameters phase velocity platform predicted present pressure problem random waves ratio response Reynolds number riser Sarpkaya seabed second-order ship simulation small forward solitary wave solution spectral spectrum stiffness surge tank tanker tension tether theory transverse values vector velocity potential vertical vessel vibration vortex vortices water depth wave drift damping wave forces wave height wave profile