Field Experiment on Random-Wave Forces on Vertical Cylinders. Part I: Possibility of Simulating the Random Process

doi:10.3850/978-981-08-7619-7_P011

Field Experiment on Random-Wave Forces on Vertical Cylinders. Part I: Possibility of Simulating the Random Process

Paolo Boccotti

Department of Mechanics and Materials, Natural Ocean Engineering Laboratory NOEL, 'Mediterranea' University, Loc. Feo di Vito, 89123 Reggio Calabria, Italy.

boccotti@unirc.it

ABSTRACT

The accuracy of the Morison equation for wave forces on cylinders is tested with a field experiment, with a database of about 69000 individual wind waves. The test is made on comparing to each other two stationary random processes of time: F_a(t) the measured wave force, and F_c(t) the wave force calculated with the Morison equation. The particle velocities and accelerations in the Morison equation are obtained with the linear theory of wind-generated waves from the directional wave spectrum obtained from measures of the wave elevation.

Keywords: Morison equation, Small scale field experiment, Drag, Inertia.

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