MEASUREMENT OF CAVITATION SHOCK AROUND TWO-DIMENSIONAL ELLIPTIC CYLINDERS.

The intensity of cavitation shock-noise is measured by using 8 models of elliptical cylinders of various eccentricites for the purpous of knowing the effect of a change of the shape of a body in a cavitating flow. The periods of cavitation shock are also measured. The period for the semi-circular elliptical cylinders shows a tendency of being reduced as the cavitation number becomes small, but for the long elliptical cylinders having the angle of incidence, contrarily the period increases as the cavitation number becomes smaller.