Pressure pulsations at the surface of a sphere in a fluid flow

Experimental results are given for the distribution of pressure pulsations as a function of the angle between the direction of the fluid flow and the position of pulsation detection by a small sensitive element. Angular and spectral characteristics of the pressure pulsations are obtained at small flow velocities (0.25 and 0.5 m/sec). It is shown that the maximum pulsations are obtained in the "dark" part of the sphere in the turbulized flow region.