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 13
... values of pipe surface roughness and in Fig . 6b the results for three different values of the sea bed roughness are shown . The full lines in the two sets of graphs represent the same test series . As indicated on the graphs , the ...
... values of pipe surface roughness and in Fig . 6b the results for three different values of the sea bed roughness are shown . The full lines in the two sets of graphs represent the same test series . As indicated on the graphs , the ...
Page 29
... values of the force components , F , and F , have been found H , max L , max in each half wave period and the ' values for the meas- ured peak forces have then been plotted versus those determined by the two prediction methods ...
... values of the force components , F , and F , have been found H , max L , max in each half wave period and the ' values for the meas- ured peak forces have then been plotted versus those determined by the two prediction methods ...
Page 261
... values can be derived using L = 0,3 m , for diffe- rent values of relative density D : k ( m / s ) Sand C - value d50 Dr = 25 % Dr = 40 % ( μm ) 100 270 360 17 540 34 5.10-5 8.10-4 1,5 24 Table 2 Note : The values for no . 3 and 4 have ...
... values can be derived using L = 0,3 m , for diffe- rent values of relative density D : k ( m / s ) Sand C - value d50 Dr = 25 % Dr = 40 % ( μm ) 100 270 360 17 540 34 5.10-5 8.10-4 1,5 24 Table 2 Note : The values for no . 3 and 4 have ...
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