Numerical Study and Optimal Blade Design of a Centrifugal Pump by Evolutionary Algorithms

Grapsas, Vasilis; Stamatelos, Fotis G.; Anagnostopoulos, John S.; Papantonis, Dimitris

doi:10.1007/978-3-540-85565-1_4

Cited by 15 publications

(14 citation statements)

References 9 publications

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“…Barrio et al (2010) examined the irregularities of the output geometry in different flow rates in their study for irregular regions in the pump geometry. Grapsas et al (2008) have performed a CFD analysis of the incompressible turbulent flow through in the test impeller and found an agreement with the corresponding measurements of the impeller of a pump in a laboratory. Also, they have examined the influence of some blade design parameters, like the blade length, the inlet height, and the leading edge inclination, on the performance and the efficiency of the impeller.…”

Section: Introductionsupporting

confidence: 58%

Design of a Mini Double-Discharge Centrifugal Pump under Multiphase Flow by CFD and Experimental Verification

Parlak

Kemerli

Engin

et al. 2018

JAFM

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Pumps are irreplaceable products in various systems and processes. Pumps can be manufactured in various size in industry. The mini pumps are commonly used in some household electrical appliances, automobile etc. Some pumping applications is required two outlet ports. The use of two pumps in such a case brings high costs. Instead, pumping on two different lines with a single pump provides both a more compact design and lower cost, if the system is available. In this study, it is aimed to design a single-suction and double-outlet pump by using a single electric motor. For this purpose, a conceptual design for the pump has been proposed and design parameters which have an effect on the pump performance have been determined. Pump performance have been calculated by using the ANSYS Fluent, Computational Fluid Dynamics (CFD) code considering to multiphase flow, and optimization studies have been performed with the determined parameters. The pumps have been obtained by the optimization works have been manufactured and tested to investigate whether the pumps provide the expected operating conditions and performances. Finally, the CFD results have been verified by the tests and the pump provided the expected operating conditions and performances.

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Section: Introductionsupporting

confidence: 58%

Design of a Mini Double-Discharge Centrifugal Pump under Multiphase Flow by CFD and Experimental Verification

Parlak

Kemerli

Engin

et al. 2018

JAFM

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“…Grepsas et al investigated numerically the impeller blade design in centrifugal pumps by dynamic algorithm [12]. They obtained flow analysis was used to conduct parametric studies of the effect of some geometric parameters of a centrifugal pump impeller.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Centrifugal Pump and Effect of Impeller Geometry on Its Performance

Gobran¹,

Ibrahim²,

Shaltout³

et al. 2019

EAS

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In the presented paper, the effect of impeller geometric parameters on the performance of centrifugal pump has been investigated. This study was performed for different flow rates and rotational speeds, allowing to obtain the performance curve for the centrifugal pump. Three dimensional computational fluid dynamic simulation of the impeller and volute for a centrifugal pump has been performed using ANSYS CFX software (a high-performance computational fluid dynamics software tool that delivers reliable and accurate solutions). The pump has an outside impeller diameter of 205 mm, impeller outlet width of 16 mm, rotational speed 1450 rpm, seven impeller blade and a specific speed of 28. By increasing the impeller outer diameter and outlet width, both net head and power consumed are increased. In addition, it was noticed that the best efficiency point (BEP) was achieved at volume flow rate higher than design flow rate. The performed simulations indicated that; by changing the impeller outer diameter from 200 mm to 210 mm, the flow rate of BEP increases about by 14.7%. By changing the impeller outlet width from 14 mm to 18 mm, the flow rate of BEP increased by about 9%, and the efficiency of BEP reduced by approximately 0.5%. It was also noticed that, increasing the rotational speed will cause an increase in the net head and consumed power. An increase of 13.8% for the flow rate of BEP was observed when changing the rotational speed from 1400 rpm to 1500 rpm, with the same BEP.

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“…Their study resulted in the fact that the blade should have more camber than the original design. Grapsas et al 6 applied the genetic algorithm coupled with ANSYS/Fluent software to obtain optimized impeller configurations for a centrifugal pump. Length and inlet height as well as the inclination of the leading edge of the impeller blade were chosen as design parameters.…”

Section: Introductionmentioning

confidence: 99%

Automatic optimization of a centrifugal pump based on impeller–diffuser interaction

Guleren

2018

Proceedings of the Institution of Mechanical Engineers, Part A:

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In this study, a centrifugal pump has been optimized using the genetic algorithm coupled with computational fluid dynamics considering the flow physics for various impeller-diffuser configurations. During the automatic optimization process, the population was selected from a pool of pump geometries generated by four design variables; namely the relative diffuser vane angle, number of diffuser vanes, number of impeller blades, and the impeller wrap angle. The genetic algorithm was combined with a flow solver and a computer aided design software which was used also to create the mesh for the generated geometry. Two objective functions were adopted for the optimization: maximum pressure increase and minimum relative flow angle, which is an indication of reverse flow in the impeller. The iteration history of the optimization for the design (2.4 kg/s) and off-design (3.6 kg/s) flow rate showed that the optimization has been converged to an impellerdiffuser configuration within approximately 250 computational fluid dynamics analyses. Three geometries from each optimization with the highest pressure increase were studied for various mass flow rates and the results were compared with those of the original pump. The results show that the first optimization indicates a significant improvement of pressure increase at design flow rate (15.5%) but decrease at larger flow rates. The second optimization which was required after the results of the first optimization enhanced the head for the entire mass flow rates with an average increase of 25.74%.

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Numerical Study and Optimal Blade Design of a Centrifugal Pump by Evolutionary Algorithms

Cited by 15 publications

References 9 publications

Design of a Mini Double-Discharge Centrifugal Pump under Multiphase Flow by CFD and Experimental Verification

Design of a Mini Double-Discharge Centrifugal Pump under Multiphase Flow by CFD and Experimental Verification

Numerical Simulation of Centrifugal Pump and Effect of Impeller Geometry on Its Performance

Automatic optimization of a centrifugal pump based on impeller–diffuser interaction

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