الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In conventional turbomachine ry, momentum exchange between the fluid and the rotor is provided by a number
of blades or shaped passage to deflect and constrain the flow in the rotor. The resulting force is the integral
of the pressure distribution over the surface of the rootor. In some turbomachinery, however, - such 8.S the unconnventional drag turbine, force on the rotor is due to the integral of the shear stress over the rotor surface in which Case no constraining blade or passage are p1~sent. There exists a type of turbomachinery rotor which differs basically from the conventj.onal bladed or vaned rotors both in configuration and in their effects, amoung which is the multiple disc rotor, which consists of 8. n~ber of thin smooth, flat parrallel discs arranged normal to a shaft and fastened rigidly to it with small spaces between the discs. Holes or slots prOVided in the discs, supply the means to fix them rigidly near the shaft.
This type of rotor, with appropriate housings can be used as hydraulic or gas turbines, hydraulic pump; and gas Commpressor.
A photograph of such a rotor is presented in Fig.(l.l.l). In use as a pump the multiple disc rotor, is enclosed in a nousing provided with bearings, housing-to-rotor seals, a cylindrical Case and appropraite suction. In thi 5 rotor.