Untitled
Document type :
Partie d'ouvrage: Chapitre
Author(s) :
Zhou, Banglun [Auteur]
JiangSu University
Dazin, Antoine [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Bayeul-Laine, Annie-Claude [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Yuan, Jianping [Auteur]
JiangSu University
Heng, Yaguang [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Dupont, Patrick [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Ouarzazi, Najib [Auteur]
Université de Lille
JiangSu University
Dazin, Antoine [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Bayeul-Laine, Annie-Claude [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Yuan, Jianping [Auteur]
JiangSu University
Heng, Yaguang [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Dupont, Patrick [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Ouarzazi, Najib [Auteur]
Université de Lille
Book title :
Advances in Hydroinformatics. SimHydro 2017 - Choosing The Right Model in Applied Hydraulics
Publisher :
Springer
Publication date :
2018-02-27
ISBN :
978-981-10-7218-5
Keyword(s) :
Vaneless diffuser
Radial flow pump
Rotating instability
2D numerical simulation
Experiment
Linear Stability Analysis
Radial flow pump
Rotating instability
2D numerical simulation
Experiment
Linear Stability Analysis
HAL domain(s) :
Sciences de l'ingénieur [physics]
French abstract :
The instabilities, occurring in pumps operating at partial flow rates, may directly cause several negative effects, such as vibration, noise, mechanical damage. The present study is focused on the investigation of the ...
Show more >The instabilities, occurring in pumps operating at partial flow rates, may directly cause several negative effects, such as vibration, noise, mechanical damage. The present study is focused on the investigation of the instabilities developing in the vaneless diffuser of a radial flow pump. The prediction of this kind of complex phenomena by numerical simulation usually involves complex (3D unsteady) and expensive calculations. The main goal of this paper is to propose and evaluate some “low cost” numerical or analytical approaches to predict the arising and the characteristics of rotating stall instabilities. For that purpose, two-dimensional numerical unsteady calculations were used. The boundary condition for the diffuser inlet was based on the flow field at the impeller outlet and static pressure was set at the diffuser outlet. The simulations have been managed for several flow rates conditions. The results of the numerical simulation are discussed and compared to i/ an already existing database (including PIV and pressure measurements), ii/ results of a 2D linear stability analysis.Show less >
Show more >The instabilities, occurring in pumps operating at partial flow rates, may directly cause several negative effects, such as vibration, noise, mechanical damage. The present study is focused on the investigation of the instabilities developing in the vaneless diffuser of a radial flow pump. The prediction of this kind of complex phenomena by numerical simulation usually involves complex (3D unsteady) and expensive calculations. The main goal of this paper is to propose and evaluate some “low cost” numerical or analytical approaches to predict the arising and the characteristics of rotating stall instabilities. For that purpose, two-dimensional numerical unsteady calculations were used. The boundary condition for the diffuser inlet was based on the flow field at the impeller outlet and static pressure was set at the diffuser outlet. The simulations have been managed for several flow rates conditions. The results of the numerical simulation are discussed and compared to i/ an already existing database (including PIV and pressure measurements), ii/ results of a 2D linear stability analysis.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Source :
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