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 27
... period equal to twice the half - wave period . The non - dimensional wave parameters are thus calculated as : On the basis of the arguments of the last para- graph the forces exerted on the pipe during the half period No. 2 in Fig . 9 ...
... period equal to twice the half - wave period . The non - dimensional wave parameters are thus calculated as : On the basis of the arguments of the last para- graph the forces exerted on the pipe during the half period No. 2 in Fig . 9 ...
Page 36
... period and the wake period . As shown in Fig.10 ( a ) at the early stage the gap between the pipe and the scour hole is small , and the downstream hill is rela- tively high . The jet is rushing sand particles away . There is no action ...
... period and the wake period . As shown in Fig.10 ( a ) at the early stage the gap between the pipe and the scour hole is small , and the downstream hill is rela- tively high . The jet is rushing sand particles away . There is no action ...
Page 150
... period it was considered that , if the air contains a tracer such as ethyl mercaptan , a leak equivalent to an orifice diameter of 1.3 mm could be detected and located . The sensitivity of pressure to temperature change is 14 Kpa per ...
... period it was considered that , if the air contains a tracer such as ethyl mercaptan , a leak equivalent to an orifice diameter of 1.3 mm could be detected and located . The sensitivity of pressure to temperature change is 14 Kpa per ...
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