プロペラの作動による三次元境界層の変形

抄録

The distorsion of three-dimensional boudary layer around the, so-to-speak, Deep Wigley model due to propeller suction is investigated experimentally by means of velocity distribution measurements ahead of and at the propeller location. It is again found, as was in the previous report, that the difference between velocity distribution with and without propeller is approximately expressed by the change of boundary layer integral parameters. The prediction of propeller suction effect on the boundary layer velocity distribution is made theoretically by use of an integral method and its simplified method. The agreement between the measured and predicted velocities is comparatively good. The effective velocity distribution is also predicted from the nominal velocity distribution.