Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 26
... velocity , while the pressure gradient is zero . For phase angles larger than 1/2 the outer pressure gradi- ent is ... velocity is reversed , leading to a local peak in the near pipe velocity . The magnitude of this wake related near ...
... velocity , while the pressure gradient is zero . For phase angles larger than 1/2 the outer pressure gradi- ent is ... velocity is reversed , leading to a local peak in the near pipe velocity . The magnitude of this wake related near ...
Page 63
... velocity 20 30 20 line Temperature ( ° C ) . dp da 40 oustic velocity change ( kPa / ( m / s ) ) plot- for a restrained pipeline of D / t ratio 75.6 , -chnique to replace temperature ivity of the equipment used should temperature ...
... velocity 20 30 20 line Temperature ( ° C ) . dp da 40 oustic velocity change ( kPa / ( m / s ) ) plot- for a restrained pipeline of D / t ratio 75.6 , -chnique to replace temperature ivity of the equipment used should temperature ...
Page 64
... velocity slightly but used of a few hundred parts per e the velocity by less than 0.1 % anges in velocity during testing . used for testing , its acoustic ell established and can be taken into ng the technique . of approximately 10 to ...
... velocity slightly but used of a few hundred parts per e the velocity by less than 0.1 % anges in velocity during testing . used for testing , its acoustic ell established and can be taken into ng the technique . of approximately 10 to ...
Contents
Model Tests | 3 |
B Bryndum V Jacobsen and D T Tsahalis 9 | 21 |
Scour Under Pipelines | 33 |
Copyright | |
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Common terms and phrases
acoustic velocity analysis Arctic Engineering axial behaviour bending bottom boundary layer buckling cable calculated clamp Cobia compression corrosion crack cylinder deflection deformation developed dew point diameter drag drag coefficient effect elastic equation experimental field Figure finite element flow force coefficients free span frequency friction friction welding function hoop stress horizontal Hydraulic hydrodynamic hydrodynamic forces in-line installation irregular waves length lift coefficient lift force liquid load maximum measured mechanical method monitoring movement nodal analysis operating parameters phase pipe displacement pipe material pipeline predicted pressure procedure ratio response riser roughness SCADA scour sea bed sea floor seabed shown simulated slug soil steady current steel storm strain strain gauges stress structural submarine pipelines surface Technology temperature tion Turning Bands underwater values variation vertical vortex shedding water depth welding zone