...Yong Han; Hui Li; Taavi Tiganik; Yuqiang Wang; Ling Zhou Trimming the impeller diameter of a centrifugal pump is the easiest and most economical way to adjust its efficient operating range based on its original performance. Three impellers obtained by trimming the diameter are investigated. Energy...

... is modified to clarify the rapid head drop of a cavitation flow within a test centrifugal pump, and it is used to simulate the cavitation flow. Local entropy generation method is used to analyze the cavitation flow with varying net positive suction head. The magnitude of entropy generation in different types...

... Phenomenon in a Centrifugal Pump Using Audible Sound ,” Mech. Syst. Signal Process. , 17 ( 6 ), pp. 1335 – 1347 . 10.1006/mssp.2002.1514 [13] Kolahan , A. , Roohi , E. , and Pendar , M. , 2019 , “ Wavelet Analysis and Frequency Spectrum of Cloud Cavitation Around a Sphere...

... characterization is achieved by modulation intensity indicators. 1 Corresponding author. e-mail:  wudazhuan@zju.edu.cn 08 02 2022 05 04 2022 28 04 2022 For centrifugal pump, underwater thruster, and other rotating fluid machinery, cavitation bubbles usually appear, develop...

...Yandong Gu; Jiaxu Li; Peng Wang; Li Cheng; Yong Qiu; Chuan Wang; Qiaorui Si The blade slip factor significantly influences the prediction accuracy of the self-closure one-dimensional flow model for side chambers of centrifugal pumps. Wiesner's and Stodola's slip factors, which are used to formulate...

...Enver S. Karakas; Nehir Tokgöz; Hiroyoshi Watanabe; Matteo Aureli; Cahit A. Evrensel This paper investigates and compares four commonly used flow transport equation-based cavitation models and their applicability to predict the cavitation performance of an industrial centrifugal pump with a helical...

...Chengshuo Wu; Wenqi Zhang; Peng Wu; Jiale Yi; Haojie Ye; Bin Huang; Dazhuan Wu In this paper, the effects of modifying the blade pressure side (PS) on unsteady pressure pulsation and flow structures in a low specific speed centrifugal pump are carried out by experimental and computational fluid...

...Chengshuo Wu; Qianqian Li; Feng Zheng; Peng Wu; Shuai Yang; Haojie Ye; Bin Huang; Dazhuan Wu In this study, three impellers with different blade pressure side (PS) profiles are designed and the influence on the hydraulic and dynamic performance of a low specific speed centrifugal pump...

...Yanpi Lin; Xiaojun Li; Bowen Li; Xiaoqi Jia; Zuchao Zhu The high-speed rotation of impellers leads to strong rotor–stator interaction, which mainly causes the pressure pulsation of centrifugal pumps. An impeller with a bionic sinusoidal tubercle trailing edge (STTE) can reduce the intensity...

...Leilei Ji; Wei Li; Weidong Shi; Ramesh K. Agarwal The Wray–Agarwal (WA) turbulence model is selected to simulate the internal and external characteristics of a centrifugal pump with semispiral suction chamber; the numerical results are compared with the experimental data and computed results...

...Baoling Cui; Yingbin Zhang; Yakun Huang Unsteady pressure pulsation and fluid force induced by flow instabilities in the centrifugal pump is an important cause of vibration, which is detrimental to the safe operation of the pump. In this study, we numerically investigated the pressure pulsation...

...Baoling Cui; Wenqing Li; Chenliang Zhang The vibration induced by the unsteady fluid exciting force in a centrifugal pump is one of the important factors affecting the reliable operation of the pump. In this study, the cutting of the blade trailing edge of a straight blade is presented to improve...

... performance of centrifugal pump under bubble inflow. The realizable k– ε model turbulence model was implemented in ansys fluent solver. The air and water were employed as the working fluids, which was consistent with the experiment. The water head and pressure increment obtained by the experiment were used...

...Thomas Schäfer; Martin Neumann-Kipping; André Bieberle; Martina Bieberle; Uwe Hampel Gas entrainment into centrifugal pumps decreases pump performance and may raise safety issues, e.g., through insufficient cooling. Although there is some phenomenological knowledge in the form of correlations...

...Sen Zhang; Huaxing Li; Deke Xi The characteristics of radial pressure distribution inside side chamber and leakage flow through balancing holes of centrifugal pumps are very important for accurately predicting the axial thrust produced by a balancing system. Therefore, a rapid and sufficiently...

...Baofeng Yang; Bin Li; Hui Chen; Zhanyi Liu; Kaifu Xu The clocking positions between the inducer and the impeller have a certain impact on the performance of the high-speed centrifugal pump, which however, is often ignored by designers. In the present study, three-dimensional numerical simulation...

...Ombeni John Mdee; Cuthbert Z. Kimambo; Torbjorn K. Nielsen; Joseph Kihedu Head and flow rate are the important parameters for proper selection of centrifugal pump. However, the reversed operation of centrifugal pump leads to the off-design characteristic of head and flow rate. This paper presents...

... degradation characteristics are shown in Fig. 4 . Fig. 4 ( a ) Head-drop curves and ( b ) the Q  −  σ 3% curve of the centrifugal test pump Because of the complexities involved, only a relatively limited number of detailed numerical analyses of cavitating flows in centrifugal pumps in low...

... 15 02 2014 The “sudden-rising head effect” may be prevalent in the head curve when a centrifugal pump transports highly viscous liquids, but it is not well understood presently. To clarify this effect the hydraulic performance of centrifugal pump when handling water and viscous oils...

..., 2013. Assoc. Editor: Bart van Esch. 12 03 2013 14 06 2013 An experimental testing rig is built to study the performance of a centrifugal pump used in medium consistency technology (MC technology). Pump performances are tested in different pulp concentration, degas pressure...