## 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 255

Coupling between the oscillatory wave field and the steady flow around the

is accounted for . Friction and separation effects are disregarded , and the fluid

flow is modelled by potential theory . The boundary value problem for the velocity

...

Coupling between the oscillatory wave field and the steady flow around the

**body**is accounted for . Friction and separation effects are disregarded , and the fluid

flow is modelled by potential theory . The boundary value problem for the velocity

...

Page 256

3 The boundary value problem Let us consider the problem in the frame of

reference translating with the steady forward speed of the

introduce a coordinate system ( -xyz with the x- and y - axes in the mean free

surface and ...

3 The boundary value problem Let us consider the problem in the frame of

reference translating with the steady forward speed of the

**body**, and let usintroduce a coordinate system ( -xyz with the x- and y - axes in the mean free

surface and ...

Page 485

Finite element meshes for twin -

0 3 4 5 6 7 10 Fig . 4. Damping coefficient for the upwave

A 22 -10 TTTTTTTTTTTTTT A33 பாடிய பயயுயுயுயா -20 Heave ...

Finite element meshes for twin -

**body**problem ( R / D = 1 : 2 , R / L = 1 : 2 ) . 0 hus0 3 4 5 6 7 10 Fig . 4. Damping coefficient for the upwave

**body**of twinbody . 5 AuA 22 -10 TTTTTTTTTTTTTT A33 பாடிய பயயுயுயுயா -20 Heave ...

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### Contents

SPECIAL SESSION HYDRODYNAMICS | 1 |

HYDRODYNAMIC FORCES | 29 |

SECONDORDER EFFECTS | 113 |

Copyright | |

47 other sections not shown

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### Common terms and phrases

acting amplitude analysis angle applied approach approximately assumed average body boundary cable calculated circular cylinder coefficients compared comparison components computed considered constant corresponding cylinder damping depth described determined diffraction direction distribution domain drag drift force effect element Engineering equation estimates experimental experiments expressed field Figure floating flow fluid follows free surface frequency function given height horizontal hydrodynamic incident included increase integral irregular waves length lift force linear loads mass maximum mean measured method mode mooring motion natural nonlinear obtained Ocean Offshore oscillation period phase platform points position potential predicted present pressure problem random range regular relative represents respectively response second order second-order separation ship shown shows simulation solution spectrum structure surge Table tests theory values velocity vertical vortex wave forces