## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Offshore structures |

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Page 115

Abs trac t This paper describes an experiment of an oscillating circular cylinder

moving forward with a constant

drag coefficient of oscillation Cdc and the average drag coefficient Cdo were ...

Abs trac t This paper describes an experiment of an oscillating circular cylinder

moving forward with a constant

**velocity**in still water. The inertial coefficient Cmc,drag coefficient of oscillation Cdc and the average drag coefficient Cdo were ...

Page 132

In the presence of incident

transverse forces to the incident flow. This is well known as Magnus Effect in

potential flow theory. These forces always reduce inertia forces.

measurements To ...

In the presence of incident

**velocity**of fluid particle, this circulation causestransverse forces to the incident flow. This is well known as Magnus Effect in

potential flow theory. These forces always reduce inertia forces.

**Velocity**measurements To ...

Page 134

10 Calculated vortex shedding patterns and

circular cylinder in regular waves for Kc=2.83 •2 Uplifting force via wave length

Fi0.3 The effect of. number N of inviscid vortices located at zQ with strength r, the

...

10 Calculated vortex shedding patterns and

**velocity**distributions around acircular cylinder in regular waves for Kc=2.83 •2 Uplifting force via wave length

Fi0.3 The effect of. number N of inviscid vortices located at zQ with strength r, the

...

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added mass amplitude analysis array calculated circular cylinder component crest damping coefficient direction displacement distribution domain drag coefficient drag force drillship dynamic effect element equation estimated flexible riser floating flow fluid force coefficients forces acting foroe forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave integral irregular Kc number lift force linear load low-frequency low-frequency oscillation matrix maximum measured method mooring line motion nonlinear obtained Offshore Mechanics Offshore Structures Offshore Technology Conference oscillation oscillatory parameters pile plate prediction pressure problem ratio Rayleigh distribution regular waves response Reynolds number Sarpkaya seastates second-order semisubmersible ship shown in Figure simulation solution spectra spectrum surge tension transfer function transverse vector velocity potential vertical viscous vortex vortex shedding vortices water depth wave amplitude wave excitation wave force wave frequency wave height wave number wave period wave power