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 7
... force coef- the Fourier analysis , the measured for- alized by 1⁄2pDU2 , U being the wave velo- e . This ... lift coefficients ( CD , CM ' CL ) Fourier coefficients and associated phase angle ( CHn ' * Hn ' Cvn ? Vn Extreme force ...
... force coef- the Fourier analysis , the measured for- alized by 1⁄2pDU2 , U being the wave velo- e . This ... lift coefficients ( CD , CM ' CL ) Fourier coefficients and associated phase angle ( CHn ' * Hn ' Cvn ? Vn Extreme force ...
Page 20
... force , and large lift eriods with small velocities periods are associated with 70 60 50 40 CV MAX GRACE OHI SARPKAYA the coefficients from the Fig . 23 and 24 together with es from the present study . he horizontal force is good , lift ...
... force , and large lift eriods with small velocities periods are associated with 70 60 50 40 CV MAX GRACE OHI SARPKAYA the coefficients from the Fig . 23 and 24 together with es from the present study . he horizontal force is good , lift ...
Page 44
... lift coefficient C , the difference between a plane bed and a scoured bed is that the pipe experiences a negative lift force in the case of a scoured bed , while it experiences a positive one , when the bed is plane . Note that Ref ...
... lift coefficient C , the difference between a plane bed and a scoured bed is that the pipe experiences a negative lift force in the case of a scoured bed , while it experiences a positive one , when the bed is plane . Note that Ref ...
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