Author(s): W. W. Jamieson; G. R. Mogridge; M. G. Brabrook
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Abstract: This paper describes the use of upright passive wave absorbers placed along the side walls of a laboratory wave tank to attenuate lateral wave disturbances. The absorbers were constructed of three rows of vertical perforated metal sheets which progressively decreased in porosity towards the side wall (the rear of each absorber). To quantify their wave attenuation characteristics, wave reflection coefficients were determined. In addition, tests were carried out to determine the distribution of wave heights in the wave tank with and without the side absorbers in place. The experimental results illustrate that the side wave absorbers did not adversely affect the incident waves in the central part of the wave tank where models of marine structures were to be tested, and could effectively attenuate waves radiating from these structures.
Year: 1989