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 5
... roughness ratio , on the hydrodynamic forces has been determined from these tests . The Supplementary Test Programme ... roughness ratio k = 10-3 - 5-10-2 * Sea bed roughness ratio = 10 - b Table 1 D Overview of Parameter Range for the ...
... roughness ratio , on the hydrodynamic forces has been determined from these tests . The Supplementary Test Programme ... roughness ratio k = 10-3 - 5-10-2 * Sea bed roughness ratio = 10 - b Table 1 D Overview of Parameter Range for the ...
Page 8
Co co KC 15 ROUGHNESS SEA BED ROUGHNESS JM H FINE MEDIUM 20 ROUGH KC кс 0 0 140 160 20 40 60 80 100 120 140 160 co 20 ALUE E ROUGHNESS IMA * C 7 CM-1.Ca 6 5 3 2 3 29 POTENTIAL PLOW VALUE SEA BED ROUGHNESS FINE MEDIUM ROUGH , 160 160 o ...
Co co KC 15 ROUGHNESS SEA BED ROUGHNESS JM H FINE MEDIUM 20 ROUGH KC кс 0 0 140 160 20 40 60 80 100 120 140 160 co 20 ALUE E ROUGHNESS IMA * C 7 CM-1.Ca 6 5 3 2 3 29 POTENTIAL PLOW VALUE SEA BED ROUGHNESS FINE MEDIUM ROUGH , 160 160 o ...
Page 18
... roughness leads to increased force coef- ficients . The smooth pipe data from Sarpkaya and Rajabi show slightly smaller C - values in accordance with the smaller k / D - value in their tests . The inertia coeffi- cient appears to be ...
... roughness leads to increased force coef- ficients . The smooth pipe data from Sarpkaya and Rajabi show slightly smaller C - values in accordance with the smaller k / D - value in their tests . The inertia coeffi- cient appears to be ...
Contents
Model Tests | 3 |
B Bryndum V Jacobsen and D T Tsahalis 9 | 21 |
Scour Under Pipelines | 33 |
Copyright | |
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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