Wave forcephase method for vertical cylinders
Abstract
The maximum force and its phase is determined for laboratory wave forces on smooth vertical cylinders. The maximum force coefficient and the normalized phase angle of the force with respect to the wave particle velocity, can be related to the force transfer coefficients, C subscript d and c subscript m, for the Morison equation. This method enables the data to be plotted in a way that immediately shows the drag or inertia dependency for the wave/cylinder conditions. In addition, the C subscript d and C subscript m so derived are more likely to properly predict the maximum value of the force, although they may also increase the rms error between the measured force and the predicted force in the time domain.
 Publication:

Final Report
 Pub Date:
 May 1985
 Bibcode:
 1985orsu.rept.....N
 Keywords:

 Cylindrical Bodies;
 Hydrodynamics;
 Vertical Orientation;
 Wave Drag;
 Energy Transfer;
 Inertia;
 Loads (Forces);
 Particles;
 Phase Shift;
 Phase Velocity;
 Transferring;
 Water Waves;
 Fluid Mechanics and Heat Transfer