Experimental Determination of Flow Characteristics and Performance Improvement of Double Volute.

淳一, 黒川; 博, 今村; 純, 松井; 恒彰, 藤井

doi:10.1299/kikaib.67.1177

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Kaupert and Staubli 19 conducted experimental research to study unsteady pressure fields in a high specific speed centrifugal pump with double volute. Kurokawa et al 20 conducted an experimental study to examine the flow characteristics and hydraulic performance of a laboratory centrifugal pump with varied rib structure. It was found that the performance of the pump was strongly affected by the rib structure, especially at high flow rates, and that proper installation of the rib structure can prevent large hydraulic loss at design and highflow rates.…”

Section: Introductionmentioning

confidence: 99%

Three-objective optimization of a centrifugal pump with double volute to minimize radial thrust at off-design conditions

Shim

Afzal

Kim

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part A:

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Optimization of a centrifugal pump with double volute was performed using surrogate modeling and a multi-objective genetic algorithm to minimize the radial thrust at off-design conditions with minimal loss in hydraulic efficiency. Both steady and unsteady numerical analyses were conducted using three-dimensional Reynolds-averaged Navier-Stokes equations with a shear stress transport turbulent model. The three objective functions are hydraulic efficiency at the design flow rate, and radial thrust coefficient at 70% and 120% of the design flow rate. In addition, three geometric parameters related to the surface curve and the locations of both ends of the rib structure were selected as the design variables for optimization. The Latin hypercube sampling method was used to choose the design points in the design space. The three objective functions were approximated using response surface approximation models. Pareto-optimal solutions representing the trade-off between the objective functions were obtained using a genetic algorithm. Representative optimal designs show that the optimized double volutes significantly reduce both the radial force and the amplitude of the radial force fluctuation with small loss in hydraulic efficiency.

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Section: Introductionmentioning

confidence: 99%

Three-objective optimization of a centrifugal pump with double volute to minimize radial thrust at off-design conditions

Shim

Afzal

Kim

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part A:

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show abstract

“…Baun et al [7] investigated the effect that the relative position of the impeller to the volute had on the hydraulic performance and radial impeller force characteristics in a circular volute casing pump. Kurokawa et al carried out an experimental study to investigate the flow characteristics in a double volute in order to balance the radial thrust in centrifugal pumps [8]. Wei et al [9] conducted numerical and experimental studies on the hydraulic performance and radial force of a single-stage pump with diffuse vanes with different outlet diameters, and Kaupert and Staubli [10] performed an experimental investigation on the unsteady pressure field in a high specific speed centrifugal pump impeller.…”

mentioning

confidence: 99%

Multi-objective Optimization Based on Unsteady Analysis Considering the Efficiency and Radial Force of a Single-Channel Pump for Wastewater Treatment

Kim¹,

Cho²,

Choi³

et al. 2016

JMEA

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A multidisciplinary optimization was conducted to simultaneously improve the efficiency and reduce the radial force of a single-channel pump for wastewater treatment. A hybrid multi-objective evolutionary algorithm was coupled with a surrogate model to optimize the geometry of the single-channel pump volute. Steady and unsteady Reynolds-averaged Navier-Stokes equations with a shear stress transport turbulence model were discretized using finite volume approximations and were then solved on tetrahedral grids to analyze the flow in the single-channel pump. The three objective functions represented the total efficiency, the sweep area of the radial force during one revolution, and the distance of the mass center of sweep area from the origin while the two design variables were related to the cross-sectional area of the internal flow of the volute. Latin hypercube sampling was employed to generate twelve design points within the design space, and response surface approximation models were constructed as surrogate models for the objectives based on the values of the objective function at the given design points. A fast non-dominated sorting genetic algorithm for local search was coupled with the surrogate models to determine the global Pareto-optimal solutions. The trade-off between the objectives was determined and was described in terms of the Pareto-optimal solutions. The results of the multi-objective optimization showed that the optimum design simultaneously improved the efficiency and reduced the radial force relative to those of the reference design.

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Experimental Determination of Flow Characteristics and Performance Improvement of Double Volute.

Cited by 2 publications

References 2 publications

Three-objective optimization of a centrifugal pump with double volute to minimize radial thrust at off-design conditions

Three-objective optimization of a centrifugal pump with double volute to minimize radial thrust at off-design conditions

Multi-objective Optimization Based on Unsteady Analysis Considering the Efficiency and Radial Force of a Single-Channel Pump for Wastewater Treatment

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