Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 5-6; Volume 8, Parts 5-6American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 131
... ( Sumer & Fredsøe , 1988 ) were performed . The test set - up is illustrated in Fig . 3.The mean water depth was held at 40 cm . Waves were produced by a piston type wave generator . The model sea beds used in the flow visualization ...
... ( Sumer & Fredsøe , 1988 ) were performed . The test set - up is illustrated in Fig . 3.The mean water depth was held at 40 cm . Waves were produced by a piston type wave generator . The model sea beds used in the flow visualization ...
Page 136
... Sumer et al . 1988 ) . Thus the CIC model proves to be a useful tool in predicting the bed velocities both in steady current situations and in waves . While the bed underneath the pipe experiences rather high velocities at the very ...
... Sumer et al . 1988 ) . Thus the CIC model proves to be a useful tool in predicting the bed velocities both in steady current situations and in waves . While the bed underneath the pipe experiences rather high velocities at the very ...
Page 174
... Sumer : vibrating pipe -0.1 Kristiansen : vibrating pipe 0-0.08 1.0 Scour depth ratio , e / D Amplitude , scourdepth ( mm ) 60 40 50 990 30 20 10 0 .001 .01 1 10 Time ( hours ) +++ Horizontal Vertical Scourdepth 0.0 + -0.5 0.0 0.5 ...
... Sumer : vibrating pipe -0.1 Kristiansen : vibrating pipe 0-0.08 1.0 Scour depth ratio , e / D Amplitude , scourdepth ( mm ) 60 40 50 990 30 20 10 0 .001 .01 1 10 Time ( hours ) +++ Horizontal Vertical Scourdepth 0.0 + -0.5 0.0 0.5 ...
Contents
PIPELINE DESIGN AND OPERATIONS | 1 |
PIPELINE FORCES DYNAMICS AND STABILITY I | 95 |
9 | 123 |
Copyright | |
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amplitude analysis applied Arctic Engineering axial base metal bending Buckle length buckling bundle calculated coefficient compressor Conference on Offshore corrosion crack curvature deformation developed diameter displacement ductile effect Eighth International Conference electrodes equation explosive welding failure flaw flow rate gas turbine geometry heat horizontal hydrodynamic hydrodynamic forces hydrogen inertial installation laboratory length lift force line pipe liquid load maximum measured Mechanics and Arctic meters method monitoring natural burial Offshore Mechanics Offshore Technology Conference operation parameters predicted present pressure problem procedure ratio reheated reliability repair resistance response rockdumps sand SAW metal scour depth seabed shown in Figure simulation Snøhvit soft zone soil Sørøya sour gas span Statoil steel stress structural submarine pipelines submerged arc welding Sumer surface Table Technology temperature tion tool trench velocity vertical vibration viscometer viscosity vortex vortex shedding wave