Hydrodynamic Pressure on an Oscillating Vertical Plate

by Ching-Piao Tsai, Natl Chung-Hsing Univ, Taichung, Taiwan,
Tzu-Kun Wei, Natl Chung-Hsing Univ, Taichung, Taiwan,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond


The hydrodynamic pressure on an oscillating vertical plate could be influenced by the effects of compressibility of fluids and surface waves. The compressibility is effective for higher frequency oscillation in deeper reservoir. It has been observed that the pressure is larger than that of incompressible fluids, particularly near the bottom. The wave-effect is, however, more meaningful for lower frequency oscillation in a given depth. Negative pressures near free surface were found in the presence of surface waves. Experiments have been performed to investigate the wave effect. Results show good agreement with theoretical studies.

Subject Headings: Surface waves | Wave pressure | Free surfaces | Hydrodynamics | Oscillations | Plates | Compression | Ground motion

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