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Keywords: lift coefficient
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Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28813-MS
... and established a methodology. The established methods were then used to predict VIM for Malikai TLP and combined motion of TLP-TAD. The drag and lift coefficient for the lab scale TLP at reduced velocity of 10 and heading of 22.5° was 1.33 and 0.13 respectively. The nominal surge, sway and yaw amplitude...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19289-MS
... cylinder upstream oil & gas contact load hydrodynamic test lift coefficient installation roller test strake drag coefficient otc 19289 coefficient vertical oscillation bare pipe polyethylene strake reynolds number deformation pipe helical strake OTC 19289 Effectiveness...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18973-MS
... contribute to the overall drag of the riser or drill string and must be carried by the floating platform and its mooring or positioning system. lift coefficient drag coefficient viv response amplitude ratio amplitude reynolds number upstream oil & gas frequency riser pipe experiment...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2006
Paper Number: OTC-18348-MS
... industry-accepted tools for frequency domain VIV analysis (Shear7). upstream oil & gas turbulence model configuration marine riser lift coefficient cross-section cfd boundary engineering accuracy viscosity eddy viscosity boundary layer otc 18348 reynolds equation calculation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2005
Paper Number: OTC-17533-MS
... a strategy for both single pipe and the non-symmetric riser bundle tests. 2H managed the tests for BP and provided post analysis. The objectives of this paper is to present: Lift coefficients obtained from the large scale single rough pipe tests Parabolic lift curves created from the single rough pipe...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2003
Paper Number: OTC-15386-MS
..., and a wake model for the drag and lift coefficients of the downstream riser. The methodology has been benchmarked with blind comparison of predictions and measurements of the threshold velocity from long-riser tests at Marintek and NDP. The wake model has been benchmarked with BP data on the drag and lift...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2000
Paper Number: OTC-11998-MS
... conference flow velocity otc 11998 frequency experiment lift coefficient larsen drag coefficient upstream oil & gas vikestad cylinder amplitude vortex-induced vibration kyrre vikestad Copyright 2000, Offshore Technology Conference This paper was prepared for presentation at the 2000...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6817-MS
... circular cylinder transverse motion lift coefficient frequency vortex-induced loading bearman transverse force cylinder experiment OTe 6817 Vortex-Induced Loading on Offshore Structures: A Selective Review of Experimental Work D.M. Sheppard and A.F. Omar, U. of Florida Copyright 1992. Offshore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6902-MS
... currently uncertain parameters, such as dynamic lift coefficient and spanwise correlation [6]. The Brown & Root simplified design procedure [5] was a compromise between DnV(1991) and ESDU 85038. It adopted K. in its formulation and yet allowed for a variation of the lift coefficient in different...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5521-MS
... range of test parameters allows the cables to be well characterized. cable drag data cable geometry drag coefficient reynolds number characteristic coefficient drag force lift coefficient hydrodynamic force cable model equation yaw angle hydrodynamic characteristic otc 5521...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5503-MS
... ambient (undisturbed) water particle velocity and acceleration, and C D , C M and C G are timeinvariant drag, inertia and lift coefficients. Equation (1) is commonly referred to as the Morison equation. The hydrodynamic force coefficients, C D , C M and C L are often taken from the 1976 or 1981 DnV...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1985
Paper Number: OTC-5007-MS
... rectangular horizontal flume, 0.3 m wide, 0.3 m high. The working section was situated at a distance of about 1 m from the upstream end of the flume. downstream body hydrodynamic force diameter bokaian coefficient downstream cylinder drag coefficient cylinder lateral geoola lift coefficient...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1982
Paper Number: OTC-4227-MS
... and Trytten8 The drag, inertia, and the lift coefficients for a smooth cylinder (~ = DL/vT = 4000) are shown in Figs. 1 through 3. Clearly, the independence principle does not hold true for sinusoidally-oscillating flow about yawed smooth cylinders. Both the drag and inertia coefficients increase...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1981
Paper Number: OTC-3992-MS
... lift coefficient valve amplitude upstream oil & gas projector OTC 3992 HYDROELASTIC RESPONSE OF CYLINDERS IN HARMONIC AND WAVE FLOW by Turgut Sarpkaya, Naval Postgraduate School; Farhad Rajabi, Mohamed F. Zedan, Brown &Root, Inc. and F. Joseph Fischer, Shell Development Company ©Copyright...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1980
Paper Number: OTC-3761-MS
... provided that the boundary" layer remains laminar. transverse force machine learning fraction inline inertia coefficient oscillation lift coefficient roughened cylinder artificial intelligence evidently cylinder smooth cylinder sarpkaya rough cylinder boundary reynolds number tunnel...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 1979
Paper Number: OTC-3647-MS
... experiment oscillation rms value circular cylinder transverse oscillation harmonic flow cylinder sarpkaya frequency coefficient relative displacement reynolds number lift coefficient amplitude dynamic response displacement vibration natural frequency synchronization rough...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1977
Paper Number: OTC-2897-MS
..., and roughness effects on the in-line and transverse force coefficients (i.e., drag, inertia, and the lift coefficients have recently been carried out by Sarpkaya. These studies were prompted by the need for systematic data and partly by the controversy concerning the influence of Reynolds number and surface...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1977
Paper Number: OTC-2898-MS
... of the Morison's equation. The transverse force has been expressed in terms of a single lift coefficient. The results have shown that the effect of wall-proximity is to increase the force coefficients for-relative gaps of e/D less than about 0.5. In this range of e/D values (0<e/D?0.5) the non-linear...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1977
Paper Number: OTC-2901-MS
... number drag coefficient roughened cylinder lift coefficient variation smooth cylinder evidently circular cylinder keulegan-carpenter number roughness element harmonic flow rough cylinder coherence steady flow cylinder relative roughness coefficient OTe 2901 WAVE FORCES ON ROUGH-WALLED...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1975
Paper Number: OTC-2320-MS
... validation. Mathematical modeling and numerical techniques have been used by l 2 3 many investigations. cable system oscillator model lift coefficient engineer differential equation bond graph method experimental data excitation cylinder frequency energy flow upstream oil & gas...

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