الفهرس 
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Abstract
The aim of the present thesis is a simulation for turbulent flow in order to
predict velocity, pressure and temperature field for the centrifugal pump.
CFD was used to solve the governing equations of the flow. K-ԑ and
RNG are used for the present case.
There are four cases had been studied, Five blades and six blades with
two different temperature hot and normal. The performance was validated
with the manufactured, previous work and it was accepted. It was found
that turbulence is higher in five blades impeller than the six one. Also it
was found that the higher temperature gives higher pressure but in small
ranges that can be neglected. The position of blade with respect to the
volute tongue makes variation distance, and depend on that it was noticed
that the higher distance, the higher separation is detected.