Abstract
Abstract The industry needs the rotodynamic pumps operating with ultra-low specific speed and relatively low flow rate more often. Designing of such structures on acceptable efficiency level is extremely difficult and require nonstandard approach to design as for example: drilled impeller or patented by author multi-piped impeller. Such pump elements are very easy to manufacture and operate with relatively high efficiency, but cavitation behavior is unknown. This paper focuses on experimental research in order to determine the cavitation characteristics of the drilled impellers and multi-piped impellers. The test rig was presented. Impeller models were made by means of SLS Rapid Prototyping methods. Additionally, CFD calculations were presented in order to determine static pressure distribution in the inlet sections of the investigated impellers.
Highlights
Modern world industry, especially chemical one, requires pumps that will be able to operate in range of extremely low specific speed with acceptable level of efficiency
The industry needs the rotodynamic pumps operating with ultra-low specific speed and relatively low flow rate more often
This paper focuses on experimental research in order to determine the cavitation characteristics of the drilled impellers and multi-piped impellers
Summary
Especially chemical one, requires pumps that will be able to operate in range of extremely low specific speed (nq
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
