## 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

Since the right hand side of Eq . ( 11 ) represents the vorticity flux per unit length the change in pressure across a segment is given by : ri AP ( 12 ) At 6 V S is the thickness of the boundary

Since the right hand side of Eq . ( 11 ) represents the vorticity flux per unit length the change in pressure across a segment is given by : ri AP ( 12 ) At 6 V S is the thickness of the boundary

**layer**is the velocity at the transition ...Page 75

Hydraulic Rough Boundary

Hydraulic Rough Boundary

**Layer**V = In the case of the rough boundary**layer**the velocity profile is described by : v.win , + 1 ) +1 ( 21 ) к V = Vin1 Y 30 +1 ] ( 15 ) k which is a good approximation to the velocity profile through all of ...Page 76

By integration of Eq . ( 23 ) over the boundary

By integration of Eq . ( 23 ) over the boundary

**layer**it is found that the total amount of rotation in the boundary**layer**is : ( 8 ) = Sokowdy --V , = و ( 24 ) 6 ỹ The total flux of vorticity in the boundary**layer**is given by : VE ( 25 ) ...### What people are saying - Write a review

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### Contents

SPECIAL SESSION HYDRODYNAMICS | 1 |

HYDRODYNAMIC FORCES | 29 |

Simulated High Reynolds Number Flow and Forces on Cylinder Groups | 71 |

Copyright | |

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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 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