Numerical Investigation of a First Stage of a Multistage Centrifugal Pump: Impeller, Diffuser with Return Vanes, and Casing. (19th June 2013)

• Record Type: Journal Article
• Authors: La Roche-Carrier, Nicolas; Dituba Ngoma, Guyh; Ghie, Walid
• Other Names: Kendoush A. A. Academic Editor.; Sahin A. Z. Academic Editor.; Yu Z. Academic Editor.
• Is Part Of: ISRN mechanical engineering. Volume 2013(2013)
• Publication Date: 2013-06-19
• Subjects: Mechanical engineering -- Periodicals; Mechanical engineering; Periodicals; Electronic journals; 621
• DOI: 10.1155/2013/578072
• Languages: English
• ISSNs: 2090-5122

Abstract

Abstract : This paper deals with the numerical investigation of a liquid flow in a first stage of a multistage centrifugal pump consisting of an impeller, diffuser with return vanes, and casing. The continuity and Navier-Stokes equations with the k - ε turbulence model and standard wall functions were used. To improve the design of the pump's first stage, the impacts of the impeller blade height and diffuser vane height, number of impeller blades, diffuser vanes and diffuser return vanes, and wall roughness height on the performances of the first stage of a multistage centrifugal pump were analyzed. The results achieved reveal that the selected parameters affect the pump head, brake horsepower, and efficiency in a strong yet different manner. To validate the model developed, the results of the numerical simulations were compared with the experimental results from the pump manufacturer.