... and Reynolds numbers. As water flows through the membrane and salts are rejected by the membrane, a boundary layer is formed near the membrane surface in which the salt concentration at the surface exceeds the salt concentration in the bulk solution. This increase of salt concentration is called...

... 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...

..., 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...

... 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 and response...

... 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 particle...

... 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 tests...

... 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...

... 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...

... the VIM JIP 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...

... 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 most offshore...

.... offshore technology conference cfd result natural period simulation model scale platform subsea system openfoam calculation antony cfd simulation experimental result coefficient model test vortex turbulence model sway vim reynolds number upstream oil & gas vim response...

... in this paper. model test amplitude frequency experimental model step riser configuration upstream oil & gas reynolds number axis offshore technology conference flexible riser coefficient current velocity natural frequency displacement vortex vibration test section Presentation...

... presents the calculated values of Ka as a function of velocity, Reynolds number, and wall shear stress. A power law trend line is fitted for all of the three scaling parameters. The three scaling parameters give different ranges of values for Ka for the field case. Value of field pipeline velocity lies...

... stabilized units such as TLPs and Semi-submersibles [18], though not as significant as Spars. 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...

... 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...

... 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...

... 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...

... monitoring systems/intelligent wells conformance improvement production monitoring otc 19811 fluid viscosity inflow performance viscosity flow rate modeling & simulation reynolds number resistance enhanced recovery hybrid icd icd design sand control OTC 19811 New Inflow Control Device...

... OTC 19377 Comparisons of Various Fairing Geometries for Vortex Suppression at High Reynolds Numbers Don W. Allen and Dean L. Henning, Shell Global Solutions (US) Inc. Copyright 2008, Offshore Technology Conference This paper was prepared for presentation at the 2008 Offshore Technology Conference...

.... Using a 0.09m diameter, 2.4m long flexible model riser, suppression performance, design sensitivity, and general handling features were determined. At the highest velocity, equivalent to a Reynolds Number of 1.4x105, VIV amplitude was reduced to ~ 0.02D, and drag coefficient to 1.12. High frequency...