名古屋港の水位変動の特性について(続)

Abstract

For researching the frequency response of the oscillation of water level in a horbor. Aseries of hydraulic experiments were carried out in two models of Nagoya Harbor, which wereused for model experiments on the tidal current. One is small, the horizontal scale is 1, 2000, and thc x'ertical one is I 667, and the other is large. 1, 700 and 1, 500 respectively.Through the model experiments it was clarified that:1) The shorter the period of incident waves is, the narrower the width of opening r)f thebreakwater is, the larger the water surface area in the harbor is, and the shallower the wateris, the more the reduction of amplitude and the increase of Ihase lag are remarkable in theharbor.2) The period of natural oscillation in the murIel is as long as about 1.5 times of theoreticalvalue, which is calculated by assuming long waves.3) Experimental values of response factor and phase lag coincide qualitatively with thetheoretical values derived by Robert W. Love with a simplified model.