Fluid power is the transmission of forces and motions using a conﬁned, pressurized ﬂuid. In hydraulic ﬂuid power systems the ﬂuid is oil, or less commonly water, while in pneumatic ﬂuid power systems the ﬂuid is air. Fluid power is ideal for high speed, high force, high power applica-tions.
Journal of Engineering for Gas Turbines and Power; Journal of Engineering Materials and Technology; ... "Three-Dimensional Nonlinear Large Deflection Model for Dynamic Behavior of Risers, Pipelines and Cables," J. Ship Res., 26, No. 1, pp. 59–64. ... Dynamic Response of Risers Conveying Fluid.
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A top-tensioned riser generally consists of outer casing, inner casing and tubing. The pipes are coupled either through fluids in the annuli or through intermediate guides (centralizers) or through both. This paper investigates the dynamic analysis for such an internally coupled fluid/ riser system.
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Dynamics of a Flexible Offshore Gas Transmission Riser with Random Vortices Patrick S. Olayiwola1,*, ... Vertical flows in risers are common fluid-transmitting means in practice, as found used in evacuating products from ... investigated the dynamics of offshore risers and …
A van der Pol wake oscillator is adopted to represent the fluctuating lift forces, and nonlinear hydrodynamic force is also introduced. The goal of the present work is to discuss VIV dynamic responses of a fluid-conveying riser to guide the design and usage of riser in offshore oil field.
Abstract−The information of particle cluster dynamics is necessary for improving the performance of a circulating fluidized bed system. The main objective of this study is to compare the particle cluster diameters and concentrations from computational fluid dynamics simulation results between circulating fluidized bed riser and downer.
Read "Dynamic stability of a submerged, free-hanging riser conveying fluid, Journal of Sound and Vibration" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
An effective dynamic stiffness matrix method is then developed to evaluate the added mass and damping influence of the fluid on the natural frequencies and the dynamic response of the coupled riser system. A riser example is used to illustrate the fluid coupling impact on the system's dynamic …
This paper deals with the dynamic responses to top end excitation of marine risers/pipes conveying internal fluid. The marine riser is often used as a flexible link between undersea bore head and subsurface offshore platform. The tidal waves and the changes of sea level consistently excite its top end connected to a floating vessel.
Dynamics and Control for Deep-Sea Marine Risers A marine riser is a pipe that connects a floating platform such as an oil rig or drillship on the ocean surface to the sea floor. Used as a fluid conveyer, it transports undersea energy resources from the seabed to the platform on the surface. Marine risers …
A dynamic model is developed for a fluid catalytic cracking (FCC) unit to describe the dynamic behavior of both the riser and the regenerator reactors and their interactions. The cracking reactions are simulated by the four‐lumped kinetic model .
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60 Patrick S. Olayiwola et al.: Dynamics of a Flexible Offshore Gas Transmission Riser with Random Vortices due to large axial strain and cross-sectional change due to Poisson effect among others. Smith , Poettmann , Cullender and Brinkley , and
dynamic power fluid riser grinding mill equipment dynamic ore processing machinery dynamic power fluid riser dynamic loading cone crusher coal mill dynamic dynamic . Choke & Kill and Mud Boosting Lines – Offshore Line . The drilling riser system must ensure complete control of fluid pressure . the riser is equipped . Tenaris offers Choke ...
fluid dynamic loading on curved riser pipes Anthi Miliou, Spencer J. Sherwin, J. Michael R. Graham Department of Aeronautics, Imperial College of Science, Technology and Medicine
Banerjee, Subhodeep, and Agarwal, Ramesh K. Computational fluid dynamics simulations of a binary particle bed in a riser-based carbon stripper for chemical looping combustion. United States: N. p., Web.
Slug flow is a liquid–gas two-phase flow in which the gas phase exists as large bubbles separated by liquid "slugs". Pressure oscillations within piping can be caused by slug flow. ... This fluid dynamics–related article is a stub. You can help Wikipedia by expanding it
This paper investigates the dynamic analysis for such an internally coupled fluid/ riser system. This paper first presents a theoretical formulation for a general riser system coupled with fluids in the annuli and centralizers between pipes. Hydrodynamic forces associated with the viscous fluid in between concentric cylinders are considered.
from computational fluid dynamics simulation results between circulating fluidized bed riser and downer. The calculation methodologies are based on the concept of kinetic theory of granular flow and statistics. The mathematical model was verified by using the experimental dataset from literature and used for computing the particle cluster dynamics.
This peer-reviewed paper was originally published as Leklong, J, Chucheepsakul, S, and Kaewunruen, S, Dynamic Responses of Marine Risers/Pipes Transporting Fluid Subject to Top End Excitations, Proceedings of the Eighth (2008) ISOPE Pacific/Asia Offshore Mechanics Symposium, Bangkok, Thailand, November 10-14, 2008.
Stahl, M., Pordal, H. and Anderson, J., "Computational Fluid Dynamics Analysis as Applied to the Prediction of Dynamic Hookload Variation in Deepwater Drilling Risers" Proceedings of OTC 2011 (Paper No. OTC-21670) presentation at the Offshore Technology Conference, USA, 2-5 …