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    Analysis and Optimization of Staggered Partial Diffuser Vanes in a Centrifugal Pump

    Source: Journal of Fluids Engineering:;2020:;volume( 142 ):;issue: 005
    Author:
    Shim, Hyeon-Seok
    ,
    Kim, Sang-Hoon
    ,
    Kim, Kwang-Yong
    DOI: 10.1115/1.4045714
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A performance analysis and three-objective design optimization were performed for the staggered partial diffuser vanes in a centrifugal pump using three-dimensional Reynolds-averaged Navier–Stokes equations. First, the performance of the diffuser vanes was evaluated for four different arrangements: full-height diffuser vanes, vaneless diffuser, half vanes attached to the hub, half vanes attached to the shroud, and staggered vanes attached alternately to the hub and the shroud. The staggered partial diffuser vanes were optimized using the following design variables: the installation angle of the vanes, the heights of the vanes attached to the hub and shroud, and the angle of rotation of the straight part on the pressure surface of the vanes. The objective functions were the hydraulic efficiency, the flowrate of the maximum pressure recovery, and the operating range of the diffuser. The Kriging model was used to construct surrogate models of the objective functions based on the results at the design points obtained by Latin hypercube sampling. The Pareto-optimal solutions were obtained by a multi-objective genetic algorithm (MOGA). The representative Pareto-optimal solutions for the staggered diffuser vanes obtained by the K-means clustering showed the improved performances in terms of both the hydraulic performance and operating range compared with the full-height diffuser vanes and the baseline design.
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      Analysis and Optimization of Staggered Partial Diffuser Vanes in a Centrifugal Pump

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4274456
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    contributor authorShim, Hyeon-Seok
    contributor authorKim, Sang-Hoon
    contributor authorKim, Kwang-Yong
    date accessioned2022-02-04T14:49:29Z
    date available2022-02-04T14:49:29Z
    date copyright2020/02/04/
    date issued2020
    identifier issn0098-2202
    identifier otherfe_142_05_051207.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4274456
    description abstractA performance analysis and three-objective design optimization were performed for the staggered partial diffuser vanes in a centrifugal pump using three-dimensional Reynolds-averaged Navier–Stokes equations. First, the performance of the diffuser vanes was evaluated for four different arrangements: full-height diffuser vanes, vaneless diffuser, half vanes attached to the hub, half vanes attached to the shroud, and staggered vanes attached alternately to the hub and the shroud. The staggered partial diffuser vanes were optimized using the following design variables: the installation angle of the vanes, the heights of the vanes attached to the hub and shroud, and the angle of rotation of the straight part on the pressure surface of the vanes. The objective functions were the hydraulic efficiency, the flowrate of the maximum pressure recovery, and the operating range of the diffuser. The Kriging model was used to construct surrogate models of the objective functions based on the results at the design points obtained by Latin hypercube sampling. The Pareto-optimal solutions were obtained by a multi-objective genetic algorithm (MOGA). The representative Pareto-optimal solutions for the staggered diffuser vanes obtained by the K-means clustering showed the improved performances in terms of both the hydraulic performance and operating range compared with the full-height diffuser vanes and the baseline design.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAnalysis and Optimization of Staggered Partial Diffuser Vanes in a Centrifugal Pump
    typeJournal Paper
    journal volume142
    journal issue5
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.4045714
    page51207
    treeJournal of Fluids Engineering:;2020:;volume( 142 ):;issue: 005
    contenttypeFulltext
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