COMPUTING ELEMENTS OF VISCOUS FRICTION BETWEEN THE ROTOR AND THE CASE TO A ROTATING MACHINE

Autor/autori: Nicolae BĂRAN, Malik N. HAWAS, Florin BARBU, Cosmin CĂRNARU

Abstract: The first part of the paper presents the constructive solution of a new type of a rotating working machine, with profiled rotors, which can circulate clean or with suspensions fluids. The present paper aims to assess the power consumed to overcome the viscous friction that occurs in two cases: a) on the radial surface between the top of the rotating piston and the case; b) on the front surface between the side surface of the rotor and the case walls. The variation of the consumed power function of the machine rpm for the two cases (a, b) is graphically presented. In the end of the paper the advantages of this new type of rotating machine with two profiled rotors are highlighted. The paper concludes with a selective list of references that reflects the current state of research in rotating machines with profiled rotors

Keywords: rotating machine, profiled rotors, viscous friction

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