## Proceedings of the ... International Conference on Offshore Mechanics and Arctic EngineeringAmerican Society of Mechanical Engineers, 1994 - Arctic regions |

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Page 215

Lift force frequency is widely characterized by the

nondimensional parameter of the form s = P. V where f is a frequency associated

with vortex-shedding, D is cylinder diameter, and V is the incident flow velocity.

Note that ...

Lift force frequency is widely characterized by the

**Strouhal number**, anondimensional parameter of the form s = P. V where f is a frequency associated

with vortex-shedding, D is cylinder diameter, and V is the incident flow velocity.

Note that ...

Page 217

In the subcritical flow regime the unsteady lift spectrum is fairly narrow band, with

a center

regime the peak lift frequency can shift dramatically to higher Strouhal values ...

In the subcritical flow regime the unsteady lift spectrum is fairly narrow band, with

a center

**Strouhal number**(at the spectral peak) of about 0.2. In the transitionalregime the peak lift frequency can shift dramatically to higher Strouhal values ...

Page 228

... is the nominal Strouhal frequency. The constant 4 is derived from Stansby's

data at subcritical Reynolds numbers. ... This reduction in

increasing a/d has been observed by Woo et al. (1981) in their experimental

studies ...

... is the nominal Strouhal frequency. The constant 4 is derived from Stansby's

data at subcritical Reynolds numbers. ... This reduction in

**Strouhal number**withincreasing a/d has been observed by Woo et al. (1981) in their experimental

studies ...

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### Contents

OCEAN WAVES AND ENERGY | 1 |

Load Control Method and Its Realization on an OWC Wave Power Converter | 19 |

Nonlinearity in CrestTrough Statistics of Bretschneider Seas | 27 |

Copyright | |

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### Common terms and phrases

amplitude analysis applied approach assumed body boundary buoy calculated Circular coefficient compared compliant component considered correlation curve cylinder damping derived determined developed direction distribution domain drag drift dynamic effects energy Engineering equation experiments expressed field Figure flow fluid frequency function given height horizontal hydrodynamic increase installation interaction Journal length lift coefficient lift force linear load mass maximum mean measured method modes mooring motion nonlinear noted obtained Offshore operation oscillation peak period phase pipe platform potential predicted present pressure problem production random range ratio reference relative represent respectively response Reynolds number second-order shedding shown shows simulation solution spectrum structure surface Table Technology tests theory tower turbulence uniform values velocity vertical vibration vortex water depth wave wind