Abstract
This study gives predictive formulas in terms of Keulegan–Carpenter (KC) numbers for the resistance coefficients of perforated walls in Jarlan-type caissons. The predictive formulas are developed and validated using a large number of experimental data from different literatures. The predictive formulas are valid for both regular and irregular waves. Different from previous predictive formulas, the effects of wave height and wavelength (wave period) on the resistance coefficients of perforated walls are well considered in the present formulas. The resistance coefficient decreases with the decreasing incident wave height or wavelength, while increases with the decreasing relative wall thickness. The effect of Reynolds number on the resistance coefficients is also indicated. Based on the newly proposed formulas of resistance coefficients, this study gives closed-form solutions for the reflection coefficients of single-chamber and multi-chamber Jarlan-type perforated caissons.
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