%0 Journal Article
	%A Mohammad Taghi Shervani Tabar and  Seyyed Hojjat Majidi and  Zahra Poursharifi
	%D 2011
	%J International Journal of Mechanical and Mechatronics Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 49, 2011
	%T Investigation of Recirculation Effects on the Formation of Vapor Bubbles in Centrifugal Pump Blades
	%U https://publications.waset.org/pdf/9868
	%V 49
	%X Cavitation in pumps is known as the formation of
vapor bubbles due to pressure drop and collapsing these bubbles. In
some conditions, it has been observed that the formation of bubbles
occurs at the pressure side of centrifugal pump blades. In this study,
the formation of bubbles at the pressure side of blades has been
investigated. Water is used in this study as the fluid and performance
curves were depicted for different flow rates in an approximately
constant speed. The results show that when a centrifugal pump works
in low flow rates, a secondary flow namely recirculation starts to
begin. In this condition, separation of flow increases which causes
vortex formation and local pressure drop and eventually the
formation of vapor bubbles starts.
	%P 80 - 85