Fluid Forces on a Cylinder in Oscillating Flow : 1st Report, Sinusoidal Oscillation

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概要

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• Fluid forces on bluff bodies in an oscillating flow are one of the fundamental subjects of fluid engineering and have been investigated in connection with wave-induced forces on ocean structures and others. The present work deals with the forces on a circular cylinder in a sinusoidally oscillating flow. The fluid forces were measured and numerically analyzed by means of FEM. The amplitudes of oscillations are set at from 0.18 to 1.3 times the cylinder diameter and Reynolds numbers vary from 370 to 8860 in this work. The results show that the measured drag forces are satisfactorily described by the so-called Morison's equation. The numerical analysis by FEM proved to be very useful for the predictions of fluid forces in this range of amplitudes.

• 一般社団法人日本機械学会の論文

著者

• OHASHI Hideo

  University of Tokyo

• Ishiwata Ryozo

  Ikutoku Technical University

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• Fluid Forces on a Cylinder in Oscillating Flow : 1st Report, Sinusoidal Oscillation

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