Abstract
The auther has once reported on the influence of the static pressure and velocity of fluid containing sand particles inflicted upon the abrasion of the pelton wheel's backets, which consistute the curved wall. In the present report the auther sums up his experimental results of the influences of the velocity of fluid independently inflicted upon the abrasion of the metallic plate-rather short one, medium one and rather long one-placed in parrallel with the flowing direction of the fluid containing sand particles. The experimental result is in summary as follow : - The total abrasion loss is in proportion with 2.2 powers of the velocity of fluid and with 3.2 powers of Reynold's Number for fluid, and the longer the plate is, the smaller the abrasion loss per unit area ; the distribution of abrasion is not uniform, and comparing with the former test result it was disclosed that the abrasion of the flat plate was smaller than that of the curved surface wall.