3-D NUMERICAL STUDY OF THE EFFECT OF IMPELLER BLADES SLOT ON THE CENTRIFUGAL PUMP PERFORMANCE USING CFD

Document Type : Original Article

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Egyptian armed forces.

Abstract

ABSTRACT
The effect of impeller backward blades with slot on the centrifugal pump
performance has been investigated numerically. Impeller blades have been modified
with different geometrical parameters of slot such as: slot radial position, slot
height  and slot inclination angle. 3-D numerical simulation has been carried
out using commercial software, ANSYS® CFX, to study the effect on the pump
performance at different flow rates. The numerical simulation has been compared
with previously published experimental results to verify the numerical solution. In
addition, the results have been compared with the impeller without slots for the same
operating conditions. It has been shown that the slot parameters have a significant
effect on the centrifugal impeller performance.

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