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Keywords: force coefficient
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24041-MS
..., the revision of wind force coefficients due to upgraded topsides, and the additional corrosion allowance for chain links due to extra 15-year service life extension compared with the original system design. A design team was formed to give the evaluation of the existing mooring system based on mooring line...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23166-MS
..., havenot generally presented in them. Easier estimation method or logic of assessingon ship shielding conditions is expected to get information for operationalrisk from the viewpoints of practical use. force coefficient wind load estimation method liquified natural gas wind force coefficient...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2000
Paper Number: OTC-11998-MS
... the Venugopal model is furthertested against the experimental data gathered by Vikestad [3]. The model wasfound to be slightly conservative in that it tends to underestimate thedamping, but not overly so. coefficient norwegian deepwater program venugopal riser force coefficient offshore technology...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1997
Paper Number: OTC-8269-MS
... of the simulation set-up, such as cell sizes, cell distribution, convergence criteria, turbulence model, and boundary conditions. Additionally, CFD methods are used to compute current force coefficients for a scale model of a 200,000 DWT tanker. Computed force coefficient values are Froude-scaled and compared...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1993
Paper Number: OTC-7235-MS
... of Instantaneous Force Coefficient~ The instantaneous force can be determined by integrating the instantaneous dimensional pressure and shear stress distributions around the cylinder. Using the fact that the vorticity on the cylinder surface is equal to the normal derivative of the tangential velocity, we can...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6901-MS
.... After that, the simulation analysis was carried out using the time domain and non-linear FEM program. In this simulation analysis, three types of the drag force coefficients were selected. The experiments of the hydrodynamic forces acting on the oscillating cylinder in the steady flow were performed...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6815-MS
... unsteady Navier-Stokes equations was undertaken by Lecointe and Piquet4 for relatively small amplitudes (A/D = 0.13). otc 6815 numerical experiment vr 0 sarpkaya experiment equation cylinder stream function streakline force coefficient streamline transformation circular cylinder vortex...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1991
Paper Number: OTC-6521-MS
... con- sists of a set of three-dimensional geo- metrical components. The force character- istics are reflected by the drag, lift and side force coefficients and their centres of effort. These characteristics are main- ly obtained from published results of mod- el experiments. By means of the following...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6314-MS
... are not identical. In fact the latter force is two times larger than the former for the free cylinder case. mass coefficient coefficient natural frequency configuration houston inertia force cylinder sarpkaya inertia coefficient force coefficient offshore technology conference riser bundle...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6372-MS
... force coefficient upstream oil & gas side pipe houston us government vertical force cylinder offshore mechanics umax flow speed variation test pipe period parameter offshore technology conference horizontal force pipe clearance artificial intelligence coefficient offshore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1989
Paper Number: OTC-6056-MS
..., pipelines in open trenches, and pipelines sliding on the seabed. Each of these cases represents a variation from the fully exposed, fixed pipeline, and for all cases reductions in the hydrodynamic loading appear. The paper presents these reductions and the associated force coefficients as functions...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1989
Paper Number: OTC-6008-MS
... keulegan-carpenter number hbrc cylinder velocity increase tow velocity roughness relative velocity hsrc roughened cylinder hran coefficient force coefficient horizontal cylinder hydrodynamic force roughened horizontal cylinder nath OTC 6008 Hydrodynamic Forces on Roughened Horizontal...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1988
Paper Number: OTC-5851-MS
... U is the time varying near bed velocity, U the acceleration, p is the water density and D the pipe diameter. C D C M and C L are the force coefficients for drag, inertia and lift. The values of CD and C were determined experimentally in steady current flows by Jones /1/, and despite...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5395-MS
... force coefficient proceedingsof cushionless hammer hammer cushionlesshammer vulcan iron work inc cushionedhammer pile resistance capacity survey formula proposalfor equation aTe 5395 A Proposal for a Simplified Model for the Determination of Dynamic Loads and Stresses During Pile Driving...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5368-MS
... dimensional analysis is performed, then a no dimensional force may be written as and the force coefficient (Mathematical Equation Available In Full Paper) The Morison (1950) equation may be used with the water particle kinematics given by the linear wave theory to write the nondimensional force, where...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5371-MS
...-scale wave heights ranged from 0-70 ft and current speeds ranged from 0-5 kt. Predicted hydrodynamic loads, based on laboratory-scale wave force coefficients, were compared to the measured loads. Results show that total wave plus current loads are predictable if proper account is taken of model-scale...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5581-MS
... reynolds number mooring system drag coefficient bilge keel depth-draft ratio circular cylinder flow pattern roll motion shallow water beam current technology conference otc 5581 ship froude number subsea system force coefficient cylinder coefficient OTC 5581 Current Loads on Ships...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1986
Paper Number: OTC-5143-MS
... identification technique that has been previously applied with success to similar type data when using the conventional Morison force model, with the objective being the determination of the drag and inertia force coefficient values together with the variation of these coefficients with different characteristic...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1986
Paper Number: OTC-5218-MS
... showed good coincidence with the measurements. Lift force coefficient used in this model is a function of local Keulegan Carpenter number KC and determined by the measured lift force of rigid vertical pipes subjected to regular wave. The direction and magnitude of lift force are evaluated...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1986
Paper Number: OTC-5205-MS
... speeds up to 4 ft/sec, and horizontal and vertical current shears. Results are presented from 14 tests of head-on and beam-on loads on a Spruance class destroyer. The deep water lateral force coefficient is shown to be independent of hull shape but with a magnitude that varies ±50% depending...

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