Numerical and parametric study of a centrifugal pump Effect of blade number and volute shape

AMIRREZA, MAHMOUDI and BEHROOZ, JAMSHIDI MOGHADAM and JAVAD, ABOLFAZLI ESFAHANI and MOHAMMADMOJTABA, NOURI (2014) Numerical and parametric study of a centrifugal pump Effect of blade number and volute shape. In: International Conference on Advances in Mechanical and Robotics Engineering - MRE 2014, 08-09 March, 2014, Kuala Lumpur, Malaysia.

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Various parameters affect the pump performance in which blade number, blade angle, outlet diameter, and volute shape are the most important. In this paper the performance of pumps with different impellers containing blade number and different volute shape containing circular-elliptical and rectangular is evaluated. In this study four different blade numbers 5, 6, 7, and 8 are modeled and two different rectangular and circular-elliptic volute shapes are also studied. Incompressible Navier-Stokes equations over a hybrid grid is solved by commercial software package Fluent. Rotational zone will be simulated by moving referenceframe method. For each impeller, the flow pattern and pressure distribution are calculated and finally the head and efficiency curves are compared and discussed. The results show that by increasing the blade numberthe head increase and efficiency decrease slightly. Also circular-elliptic volute shows better performance especially in higher flow rates than the rectangular one.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: centrifugal pump, blade number, volute shape, moving reference frame, Fluent
Depositing User: Mr. John Steve
Date Deposited: 13 May 2019 07:50
Last Modified: 13 May 2019 07:50

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