Experimental and Theoretical Investigation of Wave Forces on Rigid Vertical Cylinders

An experimental study has been carried out to investigate
the hydrodynamic forces on rigid tubular cantilever cylinders with a freeend
condition subjected to regular waves. This paper presents the
preliminary results of wave tank model test conducted to determine the
hydrodynamic forces on vertical rigid cylinders subjected to regular wave
loadings. The paper emphasizes on comparison of experimental results
with those determined numerically using Morison equation. The
comparison of experimental results with the numerical estimations is
necessary for accurate prediction of hydrodynamic coefficients. The
experimental data are generated from wave tank model test with a scale
factor of 1: 40. The cylinder diameters covered in this paper are 42 mm
and 34 mm respectively. The findings presented in this paper are part of
on-going experimental investigations intended to determine accurate
inertia (Cm) and drag (Cd) coefficients. Generally, the experimental
hydrodynamic forces are in good agreement with the theoretical values.
The findings of this research can be used to determine accurate
hydrodynamic coefficients for Malaysian offshore locations