Abstract
The vortices, such as free surface vortex and submerged vortex, occurring around or at bell-mouth inlet have been important flow characteristics which always should be considered to keep away from the suction of air-entertained or cavitated flow. The suction of air-entertained or cavitated flow is caused by unfavorable approach flow patterns at suction inlet. The flow patterns are subjected to suction well configurations and pump operation conditions. The Hydraulics Institute and Turbomachinery Society of Japan standards have some regulations for the upstream flow of the pumps to be steady and uniform. However, existing domestic suction wells generally have a partition with opening (including gate), which disturbs the steady and uniform flow, between suction well and regulation well. In this research, many model tests were conducted to observe the generation of vortex in the representative model of suction wells, which were most commonly used in KOWACO''s pumping stations. The result of model tests was compared with recommendations of previous standards. The optimum suction well and guidelines of sump design are presented.
Sign-in/Register to access full text options 
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 callMore From: Journal of Industrial Science and Technology Institute
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
