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Keywords: reynolds number
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29598-MS
... for the Reynolds number). Above a critical value, the numerator phenomenon is dominant whereas it is the denominator phenomenon which is dominant below the critical value. Different sets of equations for either ranges are packaged in a software. The boundaries of their domains of validity may then become blurred...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28672-MS
... sufficiently high to easily allow both single mode and multiple mode responses, of which both were prevalent throughout the testing program. While all of the tests were conducted at low Reynolds numbers, the results can be thoughtfully translated to most field applications. The results describe the vibration...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28771-MS
... and extrapolation to real Reynolds number condition are also analyzed with regard to loads. To analyze the load and flow characteristics, the detail conditions of wind tunnel and CFD are investigated such as flow field and model setup and their effects on results are examined. From the comparison of wind tunnel...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28813-MS
... scale experimental data at reduced velocity of 5. This could be attributed to difference in Reynolds number and tendon arrangement. There was no evident dominating frequency of motion. It was more of a flow induced motion. The drag and lift coefficients for TLP/TAD at heading of 0° was 1.1/0.28...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28995-MS
... based on a limited number of experimental data, the correlation proposed accounts for all flow and particle parameters. prediction dimensionless erosion ratio wall material production monitoring reynolds number experimental data structural geology production logging solid particle erosion...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28636-MS
..., and not the salt concentration. Higher ionic strength yields lower drag reduction despite the lower salt concentration. However, the adverse effects of salt and its ionic strength diminishes as higher Reynolds numbers. Both ASP-700 and ASP-820 exhibit a very effective drag reduction behavior and their performance...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27757-MS
... The oil and gas production pipelines typically operate at high Reynolds number and low wall shear stress conditions. However, the current wax deposition prediction models were developed based on the laboratory flow loop experimental data obtained at high shear stress and low Reynolds number...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26911-MS
... this problem numerically is of particular interest to the offshore industry in order to determine design loads and to avoid or suppress motion and vibration of the structure. But despite this being a classical flow problem, it remains a major numerical challenge, particularly at high Reynolds numbers where...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26950-MS
... for generalized external forces (such as the spring forces for horizontal stiffness). Time steps were chosen such that Courant numbers 0.1 were ensured in the wake region. The key challenges in simulating high Reynolds number (Re) vortex induced motion are to accurately capture the (i.) boundary layer...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26977-MS
... with the primary objective to enhance the understanding of possible differences between field measurements and model test observations. In this JIP the effects of waves, current inflow conditions, external damping, mass ratios and Reynolds number are investigated using CFD and model tests. Some of these effects...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25448-MS
... is a complex fluid-solid interaction phenomenon. The structure dynamic responses are influenced by many factors, such as the Reynolds number, the outer flow velocity distribution and the flow type, axial load, internal flow, the characteristics of the pipe structure, as well as the coupled environmental loads...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25109-MS
... and it was confirmed that the predictions from the two models bound the wax deposition rate calculated from the field data. pipeline condensate reservoir crude oil pipeline reynolds number prediction production logging pressure drop field data upstream oil & gas condensate liquid pipeline pigging...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24207-MS
... spar vortex amplitude test program variation current profile reynolds number turbulence coefficient subsea system vim flow speed drag coefficient upstream oil & gas hull fpso vim response natural period flume tank vibration vim amplitude floating production system...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-22953-MS
... crude oil from theGulf of Mexico. The test matrix consisted of a total of 15 experiments whichinclude 12 short term tests and 3 long term tests. The tests were conductedunder different operating conditions with a wide range of Reynolds numbers from3,700 to 20,500. The shear stress ranged from 5.4...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-22884-MS
... turbulent flow experimental data flow behavior algorithm friction factor otc 22884 artificial intelligence reynolds number non-newtonian fluid OTC 22884 Friction Pressure Losses of Fluids Flowing in Circular Conduits Ahmed H. Ahmed Kamel, University of Alaska Fairbanks and Ali S. Shaqlaih...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-22951-MS
... not follow the classical bellshape curve. Obtaining reliable experimental data to be able to describe it wasdifficult, especially at high Reynolds number (105). The paper presents experimental data for a wake behind a vibrating (and - forbenchmarking - a fixed) cylinder from 2D downstream to 50D downstream...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-19811-MS
... performance viscosity flow rate modeling & simulation reynolds number resistance enhanced recovery hybrid icd icd design sand control OTC 19811 New Inflow Control Device Reduces Fluid Viscosity Sensitivity and Maintains Erosion Resistance Martin P. Coronado, SPE, Luis A. Garcia, SPE, Ronnie D...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19161-MS
... Number of 1.4x105, VIV amplitude was reduced to ~ 0.02D, and drag coefficient to 1.12. High frequency content was removed from VIV response, thereby ameliorating potential fatigue. Tests at close to full-scale Reynolds Number proved that the VT is simple to handle, and can simultaneously suppress VIV...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19289-MS
... and low Reynolds numbers (velocities of 2.5 m/s and 0.5 m/s) and at different reduced velocities Vr. The results show that for the Deformed strakes configuration, there was no appreciable decrease in the VIV suppression efficiency of the strakes from a design consideration. The test results indicated...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19173-MS
... and formulation drilling fluid chemistry upstream oil & gas slurry flow reynolds number submarine debris flow impact drag coefficient drilling fluids and materials impact force pipeline OTC 19173 Submarine Debris Flow Impact on Pipelines: Drag Forces, Mitigation, and Control Arash Zakeri, Kaare...

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