The method of constructing the cavitation characteristics of a screw centrifugal pump using the methods of hydrodynamic modeling

Egorkina, N.; Petrov, A.

doi:10.1088/1757-899x/492/1/012015

Cited by 30 publications

(2 citation statements)

References 13 publications

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“…After analyzing the results obtained in articles (Egorkina, Petrov, 2019;Isaev, 2019;Petrov et al, 2019;Semenov, Kulakov, 2019;Martynyuk et al, 2019;Protopopov et al, 2020), the fluid flow around the original plate with spherical macro-roughness of different configurations on the leading edge was analyzed in the Autodesk CFD mathematical modeling package. Velocity distribution was analyzed in tip vortices at distances of 20 mm, 30 mm, and 40 mm behind the plate (Figure 2).…”

Section: Figure 1 Parameters Of Spherical Macro-roughnessmentioning

confidence: 99%

Influence of macro-roughness on the leading edge of the plate on hydrodynamic losses

Ryzhenkov

Volkov

Cherepanov

et al. 2022

Nexo Revista Científica

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The paper presents research into the effects of macro-roughness on the leading edge of the plate imitating excrescences on the fins of humpback whales on the value of hydrodynamic losses. The authors compare calculations with experimental results obtained on a hydrodynamic flume. All studies are performed using the Ansys CFX and Autodesk CFD computer simulation packages. Based on the obtained findings, the authors make conclusions on the feasibility of applying macro-roughening on the leading edge of the plate. The conducted computational and experimental research demonstrates the positive effects of a certain configuration of spherical macro-roughness on the hydrodynamic characteristics of the plate in the case of spillage in an open-type hydrodynamic flume.

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Section: Figure 1 Parameters Of Spherical Macro-roughnessmentioning

confidence: 99%

Influence of macro-roughness on the leading edge of the plate on hydrodynamic losses

Ryzhenkov

Volkov

Cherepanov

et al. 2022

Nexo Revista Científica

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“…Ren Wanlong et al [9] found that the viscosity coefficient increased, the screw evasion speed decreased, and the internal pressure increased. Egorkina N et al [10] illustrated the cavitation characteristics of the spiral centrifugal pump with the empirical coefficients of variation of the law. Emilio E et al [11] arranged the twin screw pumps in series, which improved the operating efficiency at constant displacement.…”

Section: Introductionmentioning

confidence: 99%

Influence of Impeller Structure Parameters on the Hydraulic Performance and Casting Molding of Spiral Centrifugal Pumps

Wang,

Luo,

et al. 2024

Water

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In order to study the influence of impeller structural parameters on the hydraulic performance and casting moulding of spiral centrifugal pumps, this paper selects a double vane spiral centrifugal pump with a specific rotation number of 170 as the research object. The Plackett–Burman experimental design is used to screen the influencing factors, and the results show that the vane thickness and the impeller outlet width are the significant influencing factors. Based on this result, five different scenarios were set for these two key parameters, numerical calculations were carried out using numerical simulation software for each of the five flow ratio cases, and casting simulations were carried out for the model of each scenario using AnyCasting6.0 to analyze the influence of these two factors on the hydraulic performance and casting forming of the spiral centrifugal pump. It was found that in terms of vane thickness, a moderate increase in vane thickness improved the hydraulic performance at small flow rates, but an excessive increase at large flow rates led to a decrease in efficiency and an increase in the probability of casting defects. In terms of impeller outlet width, increasing the outlet width caused the design point to be shifted, leading to a decrease in efficiency at small flow rates, but an increase in efficiency when the design flow rate was higher. At the same time, increasing the outlet width makes casting defects more likely to occur at the blade and back cover joint than on the blade surface. The study in this paper clarifies the significant effects of these two parameters on the performance and casting quality of spiral centrifugal pumps, and provides guidance for the optimal design of spiral centrifugal pumps.

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Brief survey on mechanical failure and preventive mechanism of turbine blades

Singh

Kharub

Singh

et al. 2021

Materials Today: Proceedings

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The method of constructing the cavitation characteristics of a screw centrifugal pump using the methods of hydrodynamic modeling

Cited by 30 publications

References 13 publications

Influence of macro-roughness on the leading edge of the plate on hydrodynamic losses

Influence of macro-roughness on the leading edge of the plate on hydrodynamic losses

Influence of Impeller Structure Parameters on the Hydraulic Performance and Casting Molding of Spiral Centrifugal Pumps

Brief survey on mechanical failure and preventive mechanism of turbine blades

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