Authors:
Nicolas La Roche-Carrier
;
Guyh Dituba Ngoma
and
Walid Ghie
Affiliation:
University of Quebec in Abitibi-Témiscamingue, Canada
Keyword(s):
Centrifugal Pump, Multistage, Impeller, Diffuser, Computational Fluid Dynamics (CFD), Modeling and Simulation.
Related
Ontology
Subjects/Areas/Topics:
Application Domains
;
Chemical and Petroleum Engineering
;
Complex Systems Modeling and Simulation
;
Computer Simulation Techniques
;
Energy and Power Systems
;
Fluid Dynamics
;
Formal Methods
;
Hydraulic and Pneumatic Systems
;
Mathematical Simulation
;
Non-Linear Systems
;
Simulation and Modeling
;
Simulation Tools and Platforms
Abstract:
In this study, a liquid flow in two-, three- and four-stage centrifugal pumps was numerical investigated. The continuity and Navier-Stokes equations with the k- turbulence model and standard wall functions were used by means of the ANSYS-CFX code. To enhance the design of the multistage pump, the impacts of the number of impeller blades, diffuser return vanes and the number of stages on the performances of a multistage centrifugal pump were analyzed. The results obtained demonstrate 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.