The effect of design parameters of the closed type regenerative pump the energy characteristics

Isaev, N. I.

doi:10.1088/1757-899x/492/1/012026

Cited by 30 publications

(3 citation statements)

References 15 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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“…Shi Weidong et al [10] designed two different shapes of volute flow passages and analyzed the impact of the flow passage shape and chamfer radius on the internal flow of the vortex pump using numerical simulation and experimental methods. Isaev [11] proposed that the hydraulic efficiency of a vortex pump increases greatly with the increase in the number of blades, and reaches its highest value when the number of blades is 24. Choi et al [12] conducted experiments on straight blades with tilt angles of 0 • , ±15 • , ±30 • , and ±45 • , as well as radial herringbone blades with angles of 15 • , 30 • , and 45 • .…”

Section: Introductionmentioning

confidence: 99%

The Influence of Different Working Fluid Temperatures on the Hydraulic Performance of Magnetic Vortex Pumps

Cheng,

Li,

et al. 2024

Water

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Magnetic vortex pumps are characterized by their high performance and zero leakage, and in recent years, they have been applied for the transportation of antifreeze coolant in varying-temperature environments. This paper combines Computational Fluid Dynamics (CFD) with experimental verification to study the external and internal flow characteristics of magnetic vortex pumps when transporting working fluid at different temperatures, considering radial clearance flow. The results indicate that as the temperature of the medium increases, both the pump head and efficiency improve. Specifically, under the design flow rate condition, the pump head increases by 16.7% when transporting a medium at 90 °C compared to ambient-temperature conditions. Conversely, the pump head is only 16.8% of that observed under ambient-temperature conditions when transporting a medium at −30 °C. Analysis of the internal flow field reveals that the changes in pump hydraulic performance at different working fluid temperatures are primarily due to variations in the vorticity of the internal flow field.

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“…The authors stated that reducing the vortical flow at the outlet and the symmetric flow at the inlet allowed for the increase of pressure, thus enhancing blower efficiency. Similarly, Isaev [14] studied the effect of six different geometric parameters on the performance of a regenerative pump. The author tested multiple design combinations of all design variables and reported a 5 per cent increase in efficiency due to lower momentum and energy loss at the pump inlet.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a Microbubble Pump with Novel ‘S-Shape’ Impeller by Experimental and Numerical Analysis at Design and Off-Design Operating Conditions

Ali

Jang

2021

Applied Sciences

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A microbubble pump with a novel ‘S-shape’ impeller is introduced to evaluate pump performance under design and off-design conditions. The robustly designed ‘S-shape’ impeller has a continuously connected impeller blade, which improves the structural strength of the impeller blades as well as pump performance. Pump performance is evaluated by experimental measurements and numerical simulations at three different flow conditions. An experimental apparatus for measuring pump performance is fabricated, and pressure, flowrate, and pump torque are measured in real-time at each flow condition, and the measured data are saved using a data logging system. In order to analyze the reliability of the measured data, evaluations of uncertainty and errors are performed for each of the flow conditions. A commercial code, ANSYS CFX, is introduced to analyze the flow field inside the pump impeller and the pump performance. Throughout the microbubble pump’s performance analysis under design and off-design conditions, turbulent kinetic energy has a higher value as the flowrate is relatively small compared to the design flow condition. It is noted that violent mixing between the internal flow inside the impeller and the channel flow increases turbulent kinetic energy. The higher turbulent kinetic energy observed in the lower-flow condition corresponds to the higher relative uncertainty. In the design flow condition, the highest magnitudes of the recirculating flow are observed as compared to the other two flow conditions. The highest recirculating flow observed at the design flow condition helps to achieve a better momentum exchange, thus increasing the overall efficiency of pump.

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The effect of design parameters of the closed type regenerative pump the energy characteristics

Cited by 30 publications

References 15 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

The Influence of Different Working Fluid Temperatures on the Hydraulic Performance of Magnetic Vortex Pumps

Performance Analysis of a Microbubble Pump with Novel ‘S-Shape’ Impeller by Experimental and Numerical Analysis at Design and Off-Design Operating Conditions

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