Investigating discharge drop characteristics of a low-discharge centrifugal pump using numerical techniques

Authors: Kutovoy E.G.
Published in issue: #4(9)/2017
DOI: 10.18698/2541-8009-2017-4-75
Category: Power, Metallurgic and Chemical Engineering | Chapter: Hydraulic Machines and Hydropneumatic units
Keywords: low-discharge centrifugal pump, blade, rotor, numerical techniques, least-squares method, fitting, dis-charge drop characteristics
Published: 10.04.2017

The study deals with the problem of theoretical justifi-cation of discharge drop characteristic linearity in low-discharge centrifugal pumps. We use a 3D mathematical model of the blading section from our experimental centrifugal pump. We numerically calculated a number of points on the discharge drop characteristic of our pump by means of the STAR-CCM+ software package. We analysed the linearity of the discharge drop characteristic using the least-squares method. We derive an average linear fit and compute its maximum deviation.

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