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http://dx.doi.org/10.5394/KINPR.2007.31.6.485

Numerical Analysis on the Pressure Distributions around a Circular Cylinder by Control Rods  

Gim, Ok-Sok (Graduate School, Mokpo National Maritime Uni.)
Lee, Gyoung-Woo (Division of Ocean System Engineering, Mokpo National Maritime Uni.)
Cho, Dae-Hwan (Division of Marine System Engineering, Mokpo National Maritime Uni.)
Publication Information
Journal of Navigation and Port Research / v.31, no.6, 2007 , pp. 485-490 More about this Journal
Abstract
The purpose in having a control rod on a buoy system is to control the motion of it. The system may be composed entirely of a single circular cylinder and a long mooring anchor cable. A control rod has one function to perform in meeting its purpose, and that is to develop a control force in consequence of its orientation and movement relative to the water. The forces and moments generated as a result of the effects of mutual interference. then determine the stability characteristics of the body. In this paper, the study of control-rod-attached buoy's 2-dimensional section was accomplished. model tests and numerical simulations had been carried out with different diameters of control rods. and varying the Reynolds number $Re=5,000{\sim}25,000$ based on the cylinder diameter(D=50mm) to predict the performance of the body and the 2 frame particle tracking method Iud been used to obtain the velocity distribution in the flow field. 50mm circular cylinder Iud been used during the whole experiments and measured results had been compared with each other.
Keywords
Circular cylinder; Contril rod; Flow control; Pressure distribution; Particle image velocimetry(PIV); Flow visualization; Numerical analysis(Fluent);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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