FLUID PARTICLES MOVEMENT IN ROTATING FLOW PASSAGE AND GEOMETRICAL BLADE SHAPE OF CENTRIFUGAL PUMP

摘要

Hydraulic force, which transferred from mechanical force and acts on fluid particle in the direction of tangent at trailing edge of impeller outlet, is constructed by two kinds of forces. One is the tangential force, which causes tangential straight movement on fluid particle in the acting direction of mechanical force. And the other is the peripheral force, which causes Peripheral curved movement on fluid particle at constant rotational radius in the acting direction of mechanical force. The former force causes flow rate, and the latter causes pump head in rotational flow passage of centrifugal turbomachinery.