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
OFFSHORE MECHANICS | 3 |
Seabed Scour Under Pipelines | 33 |
Flow Around and Forces on a Pipeline Near a Scoured | 39 |
Copyright | |
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acoustic velocity analysis Arctic Engineering axial bending bottom clamp boundary layer buckling calculated clad pipes clamp elevation compression Conference on Offshore crack cylinder deflection deformation developed dew point diameter drag drag coefficient effect electrode equation experimental Figure finite element finite element analysis flow force coefficients free span frequency friction function hoop stress hydrodynamic hydrodynamic forces in-line installation leak detection leak detection system length lift coefficient lift force line pipes liquid load maximum measured Mechanics and Arctic method monitoring nodal analysis Offshore Mechanics operating parameters phase pipe displacement pipeline pore predicted present pressure procedure ratio regular waves response riser roughness SCADA scour sea bed sea floor seabed shown simulated soil steady current strain strain gauges stress structural submarine pipelines surface technique temperature thickness tion two-phase flow values variation vertical vortex shedding weld metal