@inproceedings{687dab871221447e9aec2065a2859d03,
title = "Transient Flow Analysis in Centrifugal Pump During Rapid Stopping Process",
abstract = "Hydraulic transient simulations model for pipelines and Moto pumps are key tools to understand the response of pumping systems to unsteady events. When a large pump is started or stopped rapidly, transients occur as a result of a sudden change in rotational speed and flow velocity. Such phenomenon may cause strong positive and negative pressure oscillations in pumps and pipes. In order to investigate the influence of stopping time on the dynamic behavior of low specific speed centrifugal pump, a numerical consistent model was built and a series of simulations were established. The flow governing equations are solved with the method of characteristics of specified time intervals (MOC), whereas the induction motor dynamic performances are predicted by adopting the d-q axes theory. The main section of this paper deals with the pump transient head evolution in suction and delivery under various stopping times. Three stopping sequences are considered in this study; named rapid, moderate, and slow. The duration of the pump shutdown is varied by changing the intensity of the motor braking torque. The results indicate that fast stopping process brings with it excessive pressure fluctuations and may cause damage to pipes and hydraulic devices. Therefore, pressure control devices are needed to ensure effective design and safe operation.",
keywords = "Centrifugal pump, Induction motor, MOC simulation, Stopping time, Transient flow",
author = "Faouzi Omri and Lamjed Hadj-Taieb and Sami Elaoud",
note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.; 9th International Congress on Design and Modeling of Mechanical Systems, CMSM 2021 ; Conference date: 20-12-2021 Through 22-12-2021",
year = "2023",
doi = "10.1007/978-3-031-14615-2\_2",
language = "English",
isbn = "9783031146145",
series = "Lecture Notes in Mechanical Engineering",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "11--20",
editor = "Lassaad Walha and Mohamed Haddar and Abdessalem Jarraya and Fathi Djemal and Mnaouar Chouchane and Nizar Aifaoui and Abdelmajid Benamara and Fakher Chaari and Moez Abdennadher",
booktitle = "Design and Modeling of Mechanical Systems - V - Proceedings of the 9th Conference on Design and Modeling of Mechanical Systems, CMSM 2021",
address = "Germany",
}