EXPERIMENTAL INVESTIGATION INTO THE INFLUENCE OF THE INJECTION OF A GAS FROM THE SURFACE OF A SOLID SPHERE ON THE COEFFICIENT OF RESISTANCE

A novel procedure for determining the coeffi cient of resistance of a solid spherical particle during the injection of a gas from its surface has been proposed in a wide range of Reynolds numbers. New experimental data have been presented on the infl uence of the air injection from the surface of a solid sphere on the coeffi cient of resistance at diff erent values of the velocity of the fl ow injected and fl owing past the particle in the range of Reynolds numbers Re = 267–1333. A reduction of the coeffi cient of resistance of the solid spherical particle in gas injection from its surface has been shown. An empirical dependence has been obtained of the coeffi cient of resistance of the particle on the relation of the rate of injection of the gas and the velocity of the blowing air in a self-similar regime.
   
Author:  V. A. Arkhipov ,  S. A. Basalaev ,  S. N. Polenchuk ,  A. S. Usanina
Keywords:  solid sphere, injection of a gas from the particle surface, coeffi cient of resistance, intermediate regime, self-similar regime, experimental investigation
Page:  991