A Study of Cavitation in Pumps and Flow Systems

ABSTRACT

Cavitation is the appearance of vapor cavities inside an initially

homogeneous liquid medium, occurs in very different situations.

According to the flow configuration and the physical properties of the

liquid, cavitation is the most commonly required one in all the researches

on the pumps and flow systems but they are too hard to manipulate with

the primary methods. In this research was study the effects of rotational

speed (rpm); flow rate (Q); fluid temperature (T) and pressure (P) on

cavitation in pumps and flow system, to improve the pumps efficiency,

and to choose a suitable method circuits and software programming. This

research includes mechanism of cavitation formation, cavitation

Reduction Techniques and ANSYS FLUENT Software. It was

determined that a change in rotational speed, fluid flow rate and

temperature are caused by changes in cavitation and find out that the

cavitation in pumps increase with the rise of rotational speed and increase

with increase in fluid flow rate and increase when the fluid flow rate is

being so less and decrease with temperature rising and decrease with

increase in exit pressure.