Mathematical modeling of a centrifugal pump with a spiral tap of simplified geometry with an open and closed wheel

Averyanov, A; Protopopov, A.

doi:10.1088/1757-899x/779/1/012048

IOP Conf. Ser.: Mater. Sci. Eng.

2020

DOI: 10.1088/1757-899x/779/1/012048

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Mathematical modeling of a centrifugal pump with a spiral tap of simplified geometry with an open and closed wheel

A Averyanov

A. Protopopov

Abstract: Annotation Abstract: the characteristics of a pump with open and closed impellers are compared. The paper considers a model of a centrifugal pump for General industrial purposes. The simulation was carried out in the STAR-CCM + package. A graphical comparison of the influence of different pump design sizes on the parameters is made and the most suitable model is identified.

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2022

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Cited by 2 publications

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The study of the possibility of the pumping unit optimization for two operation modes, different from the optimal one

Lomakin

Protopopov²,

Mikheev³

et al. 2022

Izvestiya MGTU MAMI

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BACKGROUND: The study of factors affecting the vibroacoustic characteristics of pumps is one of the main areas of development in the current pump industry. Improvement of these characteristics allows to extend the service life of pumps by means of vibration levels reduction as well as to decrease the noise level. AIMS: In this study, the attempt to optimize the flow part of a multi-stage pump was made in order to obtain acceptable noise, vibration and harshness (NVH) characteristics in two operation modes that are different front the optimal one. METHODS: As the result of the study, it was found that changing these parameters in favour of NVH has a negative impact on the pump efficiency and vice versa. Thereby the optimal balance between these parameters should be found. The optimization was performed with the method of research of the parameter space with use of LP-tau sequences. The following elements were chosen as the optimization parameters: the area at the entrance to downstream, the angle of guide vanes at the entrance to the downstream, the width of rotor at the outlet, the angle of rotor vanes at the inlet and the outlet, the wrap angle of rotor vane. Decrease of the area of the graph of pressure pulsation spectrum was chosen as the optimization criteria. The mathematical model was verified with two designs of the flow part produced and tested earlier. The first sample has an overstated rate of the NVH spectrum in the area of high frequencies, the second sample has an overstated rate of the NVH spectrum in the area of low frequencies. RESULTS: The compiled mathematical model proved its good quality, showing the same results, which allows to speak about the admissibility of its use for optimization of the flow parts of pumps. CONCLUSIONS: This study will be useful for specialists in the field of vane hydraulic machines design.

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The study of the possibility of the pumping unit optimization for two operation modes, different from the optimal one

Lomakin

Protopopov²,

Mikheev³

et al. 2022

Izvestiya MGTU MAMI

View full text Add to dashboard Cite

show abstract

Investigation of the possibility to simulate oscillations of the pump housing exposed to effects of the unsteady hydrodynamic forces

Lomakin

Mikheev²,

Veselov³

et al. 2022

PoHEI.MB

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Increase in the service life and noise reduction in pumps is an important area in modern pump engineering. An attempt was made to introduce conjugate calculations in verifying correct operation of the mathematical model as the first step and identifying the main oscillation frequencies of the pump housing subsequently. The FSI interface was used in conjugate calculations at the boundary between liquid and solid media. The obtained oscillation signals were analyzed using the Fourier analysis to identify the main parasitic frequencies in the pump. It was expected that the main parasitic frequency would be the blade frequency. As a result of calculations, it became possible to verify correct operation of the mathematical model by applying it to the simplest model of a glass, which behavior could be easily explained. The mathematical model was tested on cantilever and multistage pumps, demonstrated good results and made it possible to establish that blade frequency was the main oscillation frequency.

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Mathematical modeling of a centrifugal pump with a spiral tap of simplified geometry with an open and closed wheel

Cited by 2 publications

References 6 publications

The study of the possibility of the pumping unit optimization for two operation modes, different from the optimal one

The study of the possibility of the pumping unit optimization for two operation modes, different from the optimal one

Investigation of the possibility to simulate oscillations of the pump housing exposed to effects of the unsteady hydrodynamic forces

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