TY  - JOUR
AV  - none
SP  - 247
TI  - Effects of marine growth on hydrodynamic coefficients of rigid tubular cylinders
N1  - cited By 5
SN  - 16609336
PB  - Trans Tech Publications Ltd
EP  - 252
KW  - Drag coefficient; Hydrodynamics; Sailing vessels; Water waves
KW  -  Hydrodynamic coefficients; Hydrodynamic forces; Inertia coefficient; Keulegan-carpenter number; Marine growth; Morison equation; Wave frequencies; Wave hydrodynamics
KW  -  Cylinders (shapes)
ID  - scholars5256
N2  - In this paper the wave induced hydrodynamic forces and the corresponding hydrodynamic coefficients for a 42 mm diameter model pipe subjected to regular waves was investigated experimentally and the results were compared with the responses of a similar rigid cylinder fitted with marine growth. The main objective of this study was to quantify the effects of marine growth on the hydrodynamic forces experimentally and determine the associated hydrodynamic coefficients. The experimental data were generated from a set of wave tank model tests and the results were scaled up using a scale factor of 1:55. The thickness of marine growth applied on the model pipe was varied with respect to the water depth in the ratio of 3:2:1. Regular waves were generated with wave heights ranging from 0.02 m to 0. 2 m for modal period varying from 0.6 s to 3.25 s. The tests were conducted for Keulegan-Carpenter number ranging from 3.9 to 23.3. The findings of the experimental results revealed that increasing the thickness of the full scale prototype cylinder by 110 mm due to marine growth fittings, has increased the overall wave hydrodynamic forces by 16 to 90 depending on the wave heights and the wave frequencies at which the model was tested, proving that the drag coefficients have considerably increased. © (2014) Trans Tech Publications, Switzerland.
Y1  - 2014///
VL  - 567
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903526615&doi=10.4028%2fwww.scientific.net%2fAMM.567.247&partnerID=40&md5=61d8761c44e0322d0d804888f4cb9b5d
A1  - Al-Yacouby, A.M.
A1  - Kurian, J.V.
A1  - Sebastian, A.A.
A1  - Liew, M.S.
A1  - Idichandy, V.G.
JF  - Applied Mechanics and Materials
ER  -