2D Tests with One and Two Cylinders in Waves

Abstract

A small new facility has been installed in the Department of Naval Architecture of the University of Sao Paulo, Brazil. It is a wave flume, 14 meters long, 1 meter wide and 1 meter deep. Regular and irregular waves, as well as packages of waves, can be generated in the range 0.5 - 2.5 Hz, 0.5 - 5.0 cm. The wave generator is plunger-type, driven by a servo-motor. 2D tests with one and two cylinders have been conducted, varying the immersion and the distance between the cylinders. Forces acting on the cylinders, wave elevation and plunger motion have been measured. The paper describes the facility and presents the results for the stationary cylinders acted transversely by waves.