Results 11 to 20 of about 105,111 (265)

Multi-objective optimization of a high efficiency and suction performance for mixed-flow pump impeller

open access: yesEngineering Applications of Computational Fluid Mechanics, 2019
This research aimed to systematically maximize hydraulic efficiency and suction specific speed for mixed-flow pump using a commercial CFD packages and optimization tool.
Jun-Won Suh   +6 more
doaj   +2 more sources

Effect of gas quantity on two-phase flow characteristics of a mixed-flow pump

open access: yesAdvances in Mechanical Engineering, 2016
The inlet gas quantity has a great influence on the performance and inner flow characteristics of a mixed-flow pump. In this article, both numerical and experimental methods are used to carry out this research work.
Qiang Fu   +3 more
doaj   +1 more source

Numerical Simulation on the Performance of a Mixed-Flow Pump under Various Casing Structures

open access: yesAdvances in Mechanical Engineering, 2013
With regard to the reactor coolant pump and high flow-rate circulating pump, the requirements on the compactness of the structure, safety, and hydraulic performance are particularly important.
Wu Dazhuan, Hu Fangfang, Wang Leqin
doaj   +1 more source

Effects of Gas-Volume Fractions on the External Characteristics and Pressure Fluctuation of a Multistage Mixed-Transport Pump

open access: yesApplied Sciences, 2020
In the petroleum industry, multiphase transport pumps are a crucial technology for petroleum extraction. Therefore, the pressure fluctuation and internal-flow characteristics of multiphase transport pumps with different inlet-gas-volume fractions (IGVFs)
Chenhao Li   +4 more
doaj   +1 more source

Three-objective optimization of a mixed-flow pump impeller for improved suction performance and efficiency

open access: yesAdvances in Mechanical Engineering, 2019
In this article, design optimization was carried out to improve the suction performance and efficiency of a mixed-flow pump impeller. Commercial computational fluid dynamics code and a response surface method were used in the optimization to design a ...
Sung Kim   +3 more
doaj   +1 more source

Influence of a groove-structured vortex generator on the drag reduction characteristics of a multiphase pump

open access: yesFrontiers in Energy Research, 2023
The oil–gas mixture pump significantly contributes to marginal oil field extraction and remote transportation of deep-sea oil. Nevertheless, during the operation of the mixture pump, it is inevitable to encounter problems like the separation of the mixed
Wei Han   +7 more
doaj   +1 more source

Modelling of vertical shaft of mixed-flow pump [PDF]

open access: yesArchive of Mechanical Engineering, 2013
Abstract The aim of the work was modelling of shaft and calculation of natural vibration frequencies and critical rotations of a large-size, vertical mixed flow pump of total length l=4866 mm. Equations of motion were determined analytically, and then calculation results were verified by numerical modelling. The difficulty of the problem consisted
Henryk Holka, Tomasz Jarzyna
openaire   +1 more source

Vibration of Shaft System in the Mixed-Flow Pump Induced by the Rotor-Stator Interaction under Partial Load Conditions

open access: yesShock and Vibration, 2018
In order to reveal the relationship between rotor-stator interaction-induced unsteady flow and the shaft vibration of the mixed-flow pump, PIV (particle image velocimetry) and axis orbit experiments were carried out synchronously in a mixed-flow pump ...
Wei Li   +5 more
doaj   +1 more source

Studies on diffuser of mixed flow pump.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1987
For the purpose of improving performance of a mixed flow pump, it is necessary to investigate not only an impeller but also a diffuser. The latter, however, has been investigated scarcely. Thus, in this report, the performance and internal flow of the mixed flow diffuser with vanes were clarified. The following conclusions were mainly derived.
Tomitaro TOYOKURA   +2 more
openaire   +2 more sources

3-D Viscous Flow Analysis of a Mixed Flow Pump Impeller

open access: yesInternational Journal of Rotating Machinery, 2001
This paper presents the results of a study using a coarse grid to analyze the flow in the impeller of a mixed flow pump. A commercial computational fluid dynamics code (FLOTRAN) is used to solve the 3-D Reynolds Averaged Navier Stokes equations in a ...
Steven M. Miner
doaj   +1 more source

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