(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-09)
Tapscott, Susan Schultz
An experimental investigation of the tangentiaì drag
of an axially oscillating cylinder is presented. Deep-sea
mooring cables are oscillated sinusoidally at ocean wave
amplitudes and frequencies, and experimenta1 values of the
tangential (friction) drag coefficient are obtained. The
experimental values of the drag coefficient are compared
with values predicted by the exact solution to the Navier-Stokes equations for a smooth cylinder in laminar flow.
The experimental data reports drag coefficient values that
are consistently higher than those predicted by the laminar
theory. An attempt is made to interpret the discrepancies
in terms of the effects of roughness and/or turbulence.
