scholarly journals Optimization of Vane Diffuser in a Mixed-Flow Pump for High Efficiency Design

2011 ◽  
Vol 4 (1) ◽  
pp. 172-178 ◽  
Author(s):  
Jin-Hyuk Kim ◽  
Kwang-Yong Kim
Keyword(s):  
High Efficiency ◽  
Mixed Flow ◽  
Flow Pump ◽  
Vane Diffuser

Performance Improvement of a Mixed-Flow Pump by Optimization Techniques

2011 ◽  
Author(s):  
Jin-Hyuk Kim ◽  
Chong-Hwi Jin ◽  
Kwang-Yong Kim
Keyword(s):  
High Efficiency ◽  
Stokes Equations ◽  
Leading Edge ◽  
Optimization Procedure ◽  
Latin Hypercube Sampling ◽  
Optimization Techniques ◽  
Mixed Flow ◽  
Impeller Blade ◽  
Flow Pump ◽  
Vane Diffuser

This paper presents an optimization procedure for high-efficiency design of a vane diffuser in a mixed-flow pump. Optimization techniques based on a radial basis neural network model are used to improve the performance of a vane diffuser in a mixed-flow pump. In flow analyses, three-dimensional Reynolds-averaged Navier-Stokes equations with the shear stress transport turbulence model are discretized by using finite volume approximations and solved on hexahedral grids to evaluate the efficiency as the objective function. The numerical results are validated through a comparison with experimental data for the head, power and efficiency. Latin-hypercube sampling method as design-of-experiments is used to generate the design points within the design space. In order to improve the efficiency of a mixed-flow pump, four variables defining the lean angle at diffuser vane tip span, the distance between trailing edge of impeller blade and leading edge of diffuser vane, the straight vane length ratio, and the diffusion area ratio are selected as design variables in the present optimization. As a result of the present study, the efficiency at the design point is remarkably enhanced through the design optimization.

High-efficiency design of a mixed-flow pump using a surrogate model

2016 ◽  
Vol 30 (2) ◽  
pp. 541-547 ◽  
Author(s):  
Man-Woong Heo ◽  
Kwang-Yong Kim ◽  
Jin-Hyuk Kim ◽  
Young Soek Choi
Keyword(s):  
Surrogate Model ◽  
High Efficiency ◽  
Mixed Flow ◽  
Flow Pump

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

2019 ◽  
Vol 13 (1) ◽  
pp. 744-762 ◽  
Author(s):  
Jun-Won Suh ◽  
Hyeon-Mo Yang ◽  
Yong-In Kim ◽  
Kyoung-Yong Lee ◽  
Jin-Hyuk Kim ◽  
...  
Keyword(s):  
High Efficiency ◽  
Multi Objective Optimization ◽  
Mixed Flow ◽  
Pump Impeller ◽  
Multi Objective ◽  
Suction Performance ◽  
Flow Pump

High-efficiency design of a mixed-flow pump

2010 ◽  
Vol 53 (1) ◽  
pp. 24-27 ◽  
Author(s):  
Jin-Hyuk Kim ◽  
Hyung-Jin Ahn ◽  
Kwang-Yong Kim
Keyword(s):  
High Efficiency ◽  
Mixed Flow ◽  
Flow Pump

scholarly journals Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump

2014 ◽  
Vol 67 ◽  
pp. 02104 ◽  
Author(s):  
Milan Sedlář ◽  
Martin Komárek ◽  
Michal Vyroubal ◽  
Vít Doubrava ◽  
Michal Varchola ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
High Efficiency ◽  
Mixed Flow ◽  
Flow Pump

A Study of Tip Clearance Effect for a Mixed-Flow Pump on Performance

2013 ◽  
Author(s):  
Dong Jun Kim ◽  
Young Uk Min ◽  
Jin Young Kim ◽  
Kyung Nam Chung
Keyword(s):  
Power Plants ◽  
Performance Test ◽  
High Efficiency ◽  
Tip Clearance ◽  
Hydraulic Efficiency ◽  
Mixed Flow ◽  
Pump Head ◽  
Specific Speed ◽  
Desalination Plants ◽  
Flow Pump

A vertical mixed-flow pump characterized as large flowrate and high efficiency is used for water supply in the power plants and seawater desalination plants. High specific speed pumps, like axial and mixed-flow pumps, tend to present saddled formation “dip” which restricts the operation range of the pumps due to vibration and noise. In this study, the pump performance test was performed to compare with the numerically simulated results for the mixed-flow pump with specific speed of 780 (m3/min, m, rpm). The impeller tip clearance effect on the pump head and hydraulic efficiency was investigated. The numerically simulated results showed that tip clearance effect changes Q-H curve. It is deduced that altered flow field of outer streamline is related with the prediction of dip phenomenon. Also, possible causes of dip were investigated and a new pump having Q-H curve free from saddled formation was designed.

scholarly journals Unsteady Hydraulic Force in Mixed-Flow Pump with Volute Casing.

1997 ◽  
Vol 63 (614) ◽  
pp. 3330-3337 ◽  
Author(s):  
Hayato SHIMIZU ◽  
Chisachi KATO ◽  
Tomoyoshi OKAMURA ◽  
Takehiko KOMATSU
Keyword(s):  
Mixed Flow ◽  
Hydraulic Force ◽  
Flow Pump

Effect of Blade Thickness on Rotating Stall of Mixed-Flow Pump Using Entropy Generation Analysis

Energy ◽  
2021 ◽  
pp. 121381
Author(s):  
Leilei Ji ◽  
Wei Li ◽  
Weidong Shi ◽  
Fei Tian ◽  
Ramesh Agarwal
Keyword(s):  
Entropy Generation ◽  
Rotating Stall ◽  
Mixed Flow ◽  
Blade Thickness ◽  
Flow Pump

DEVELOPMENT OF A MINIATURE MIXED-FLOW PUMP TO REPLACE TOTAL HEART FUNCTION

ASAIO Journal ◽  
1996 ◽  
Vol 42 (2) ◽  
pp. 8
Author(s):  
H. Anai ◽  
K. Araki ◽  
M. Oshikawa ◽  
T. Hadama ◽  
Y. Uchida
Keyword(s):  
Heart Function ◽  
Mixed Flow ◽  
Flow Pump
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