## 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 39

4.4 Wave Spectrum It was found that the wave spectra measured in our test

4.4 Wave Spectrum It was found that the wave spectra measured in our test

**field**were almost proportional to f - s at high frequency range as usual and can be expressed by PiersonMoskowitz type formulation as S ( f ) = A f - s exp ( -Bf- ...Page 109

+ 2 а Ф 2 ay = 0 ( 6 ) ax o is the potential , and the velocity in the x and y direction is found from : a V x ОФ and v ax у аф ay ( 7 ) In an irrotational flow

+ 2 а Ф 2 ay = 0 ( 6 ) ax o is the potential , and the velocity in the x and y direction is found from : a V x ОФ and v ax у аф ay ( 7 ) In an irrotational flow

**field**the Bernoulli equation is valid and reads : Fig .Page 205

The far -

The far -

**field**asymptotic behaviour of the potentials are discussed and the rediation conditions for the second - order diffraction potentials are explicitly given . The formulation of radiation conditions for the second - order ...### What people are saying - Write a review

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### Contents

CONTENTS | 1 |

OFFSHORE TECHNOLOGY PART | 12 |

Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |

Copyright | |

20 other sections not shown

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### Common terms and phrases

acting added amplitude analysis applied array body boundary calculated circular coefficient compared comparison component computed considered constant crest cylinder damping defined depends depth determined direction distribution domain drag drift dynamic effect elevation Engineering equation estimated experimental experiments factor field Figure flow fluid frequency function given horizontal hydrodynamic incident increase integral irregular KC number length lift lift force linear load mass maximum mean measured method moored motion nonlinear obtained Offshore oscillation parameters peak period pile plate potential predicted presented pressure problem radiation random range ratio regular waves relative respectively response second-order ship shown shows simulation solution spectra spectrum speed structure surface surge Table technique term theory tion velocity vertical vessel vortex wave force wave height