Multicavitation States Diagnosis of the Vortex Pump Using a Combined DT-CWT-VMD and BO-LW-KNN Based on Motor Current Signals

Zeng, Weitao; Zhou, Peijian; Wu, Yanzhao; Wu, Denghao; Xu, Maosen

doi:10.1109/jsen.2024.3446170

IEEE Sensors J.

2024

DOI: 10.1109/jsen.2024.3446170

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Multicavitation States Diagnosis of the Vortex Pump Using a Combined DT-CWT-VMD and BO-LW-KNN Based on Motor Current Signals

Weitao Zeng,

Peijian Zhou,

Yanzhao Wu

et al.

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Cited by 5 publications

References 59 publications

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Numerical simulation study of vortex cavitation and induced pulsation characteristics in spiral lobe pumps

Zhou,

Xiang,

Zhou

et al. 2024

AIP Advances

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Lobe pumps are used in many different sectors because of their versatility and effectiveness for managing multiphase flows. In this study, three-dimensional unsteady numerical simulations are performed to evaluate the vortex cavitation phenomenon in these pumps. The work combines dynamic meshing techniques, advanced vortex recognition methods, and a full cavitation model to provide insight into the genesis, evolution, and influence of vortex cavitation on pump performance. The results of the study demonstrate that under high-speed and high-pressure conditions, vortex flow occurs at the edge of the rear of the rotor lobe in the suction chamber of the lobe pump, resulting in the production of vortex cavitation. Cavitation is most strong at the core of the vortex, while the degree of cavitation at the edge of the vortex gradually diminished. The gas volume fraction reduces from 0.135 to 0.0832, and this makes the pressure decrease from 1.055 to 1.02 MP. The process of genesis, development, and removal of vortex cavitation is cyclic. At different levels of cavitation, the degree of pulsation in pump outlet flow, pressure, and radial force increases with increasing cavitation. Periodic vortex cavitation leads to periodic changes in pump output pressure, flow rate, radial force, and axial force.

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Numerical simulation study of vortex cavitation and induced pulsation characteristics in spiral lobe pumps

Zhou,

Xiang,

Zhou

et al. 2024

AIP Advances

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show abstract

Improving the energy performance of vortex pump based on whale optimization algorithm

Zhou,

Wen,

Wang

et al. 2024

Engineering Applications of Computational Fluid Mechanics

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Analysis and prediction of force characteristics of tubular turbine based on Hankel-DMD-LSTM

Wu,

Tao,

Zhu

et al. 2024

Engineering Applications of Computational Fluid Mechanics

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Multicavitation States Diagnosis of the Vortex Pump Using a Combined DT-CWT-VMD and BO-LW-KNN Based on Motor Current Signals

Cited by 5 publications

References 59 publications

Numerical simulation study of vortex cavitation and induced pulsation characteristics in spiral lobe pumps

Numerical simulation study of vortex cavitation and induced pulsation characteristics in spiral lobe pumps

Improving the energy performance of vortex pump based on whale optimization algorithm

Analysis and prediction of force characteristics of tubular turbine based on Hankel-DMD-LSTM

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