TY  - JOUR
JF  - Ain Shams Engineering Journal
VL  - 11
Y1  - 2020///
A1  - Ng, C.Y.
A1  - Tuhaijan, S.N.A.
A1  - Fattah, M.Z.A.
A1  - John Kurian, V.
A1  - Mustaffa, Z.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85080098729&doi=10.1016%2fj.asej.2020.01.012&partnerID=40&md5=40440c698c3e52495a94eb4d23f8d740
N1  - cited By 4
SP  - 1021
PB  - Ain Shams University
AV  - none
N2  - Assessment of wave forces in the design of marine structures considering real ocean properties were reported better represented by short-crested wave statistics. Henceforth, this paper aims to investigate the effect of directional spreading angles for short-crested wave on the prediction of wave forces and hydrodynamic coefficients. The wave surface elevation and forces exerted on bottom fixed vertical cylindrical models in the wave tank by waves with directional spreading angles ranging from 0 to 45 deg were measured experimentally. Based on the measured data, directional hydrodynamic coefficients as function of Keulegan-Carpenter (KC) numbers were derived numerically by the least square method and its effects were analyzed. Force reduction was found due to the directional spreading angles, whereby 1.20 percent of total wave force were reduced with every one deg of angle incremental. Overall, greater reductions are expected for bigger angles as the wave energy distribution area is expected to be increased. © 2020 Faculty of Engineering, Ain Shams University
SN  - 20904479
KW  - Hydrodynamics; Least squares approximations; Offshore structures; Water waves; Wave energy conversion
KW  -  Directional spreading; Hydrodynamic coefficients; Keulegan-carpenter number; Short-crested waves; Wave-structure interaction
KW  -  Sailing vessels
IS  - 4
TI  - Experimental investigation of directional hydrodynamic coefficients and the effects on wave force due to spreading angles
ID  - scholars12468
EP  - 1034
ER  -