Results 161 to 170 of about 196,217 (204)

Hydrodynamic approximation for distinct diffusion coefficients

Journal of Solution Chemistry, 1986
The distinct diffusion coefficient is a measure of the coupling of the diffusive motions of two particles. It is given as the integral over a velocity cross correlation rather than the velocity self correlation that determines the self-diffusion coefficient. A hydrodynamic approximation for the distinct diffusion coefficient is proposed and then tested
Harold L. Friedman, R. Mills
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Hydrodynamic Coefficients for an Extraterrestrial Submarine

Volume 7: Fluids Engineering, 2019
Abstract An autonomous submarine design was proposed as part of NASA’s NIAC program to explore the hydrocarbon seas of Titan, the Saturnian moon, and study its hydrological cycle. The submarine is to be capable of operating at both the surface and in a deeply-submerged mode.
Iskender Sahin, Peter Garrison, Shafquat Islam, Ona Thornquist, Hani AlHasni   +4 more
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Hydrodynamic Coefficients and Depth Parameter

Journal of Waterway, Port, Coastal, and Ocean Engineering, 1985
The in-line forces measured on a small section of a fixed vertical cylilnder in waves are analyzed to determine the effects of the hydrodynamic coefficients on the water depth parameter or the orbital shape parameter, Ω. The coefficients, C\dM, C\dD as well as an rms force coefficient, C\dF derived from these forces are found to be insensitive to the ...
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Hydrodynamic coefficients for calculation of hydrodynamic loads on offshore truss structures

Marine Structures, 1996
Abstract The current American Petroleum Institute's recipe [API RP 2A WSD, Recommended practice for planning, designing and constructing fixed offshore platforms, working stress design. API, USA, 1993.] for calculation of hydrodynamic loads on offshore truss structures is compared with the corresponding North Sea Design Practice, as given by the ...
Ove T. Gudmestad, Geir Moe
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Hydrodynamic coefficients of a vertical circular cylinder

Canadian Journal of Civil Engineering, 1990
The added mass and the damping coefficient of a large surface-piercing circular cylinder extending to the seabed and undergoing horizontal oscillations are described. A closed-form solution to the corresponding linear radiation problem is obtained by the use of eigenfunction expansions.
Michael Isaacson, Thomas Mathai, Carol Mihelcic   +2 more
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Interpolation and extrapolation of hydrodynamic coefficients

Applied Ocean Research, 1983
Abstract The solution to the problem of calculating the hydrodynamic forces on multiple floating bodies is summarised. The complex coefficients which characterise the forces at each frequency of oscillation are expensive to compute; interpolation of intermediate values and extrapolation to high frequencies appear difficult since the coefficients seem
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Hydrodynamic rotational friction coefficients for nonspheroidal particles

The Journal of Physical Chemistry, 1983
Discussion de calculs hydrodynamiques pour des objets en rotation dans un fluide continu et homogene avec des conditions aux limites soit de glissement, soit d ...
Janis L. Dote, Daniel Kivelson
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Determining the Hydrodynamic Coefficients of a BOP

Volume 2: CFD and VIV, 2016
Blow-out preventers (BOPs) can be subjected to vortex induced vibration and also oscillating wave-induced loads from attached risers. Typically, the response of the BOP is estimated using heuristic codes and assumed hydrodynamic coefficients (added mass and drag) of the BOP and attached structures.
Samuel Holmes, William Calver, Michael Tognarelli, Yiannis Constantinides, Massimiliano Russo   +4 more
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Hydrodynamic Coefficients From In-Line VIV Experiments

24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 1, Parts A and B, 2005
For subsea pipelines installed in areas with uneven seabed free spans may occur and fatigue failure due to vortex induced vibrations (VIV) is one of the main concerns related to these spans. In order to install pipelines in such areas the safety against fatigue failure from in-line (IL) and cross-flow (CF) VIV must be documented.
Kristoffer H. Aronsen, Carl Martin Larsen, Kim Mo̸rk   +2 more
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Hydrodynamic friction coefficients for cellodextrins in water

Journal of Polymer Science Part A: General Papers, 1965
AbstractThe diffusion coefficients for the cellobiose through cellohexaose members of the cellodextrin series were determined in water. The molecular friction coefficients calculated on the basis of the Einstein diffusion equation can be represented by, ζN = N ζa + 2ζe, where ζa is the monomeric friction coefficient of an anhydroglucose unit, ζe is a ...
Sheldon F. Kurath, Donald D. Bump
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