Optimization of a butterfly valve disc using 3D topology and genetic algorithms

Caraballo, Sergio Corbera; Olazagoitia, José Luis; Ruiz, Juan-Carlos; Fernández, Roberto Álvarez

doi:10.1007/s00158-017-1694-4

Cited by 16 publications

(4 citation statements)

References 23 publications

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“…Kim et al [4] conducted preliminary numerical simulation to analyze the internal flow field of the butterfly valve but did not quantify the regulating characteristics. Corbera et al [5,6] used genetic algorithms to optimize the design of butterfly valve plates to improve the regulating characteristics of butterfly valves. The results proved the ability of the techniques to improve the valve disc, thereby improving the control of the flow.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of the Performance Characteristics of Butterfly and Pinch Valves

et al. 2023

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Valves are important components in controlling the amount of fluid going to devices. One of these types is the butterfly valve (BFV) that adjusts the amount of flow by rotating the valve disk by means of its shafts which is usually located in the middle of the flow. Despite its common usage in various applications, the BFV is known to cause a high-pressure drop. Conversely, the pinch valve is another type of flow control device that uses a pinching mechanism to open and close the inner tube by pinching at different degrees. The absence of flow-controlling mechanisms in the flow path, such as the valve disk and its shaft, contribute to the minimal pressure drop in pinch valves. The high-pressure drop in BFVs and the minimal pressure drop in pinch valve flow make it worthwhile to investigate and compare their flow at all opening positions of the two valves. Therefore, this work numerically explores the potential of using the pinch valve as an alternative to the BFV in terms of its ability to attain a lower pressure loss, hence better flow rate. The influence of various BFV parameters such as shaft diameter, valve thickness, and valve disk edge were examined. The performance characteristics of both valves were obtained using CFD models formed on the SolidWorks program. This CFD model solves the differential equations using the finite element method. Moreover, a mathematical model to determine the area of the pinch valve at various pinching degrees was developed and compared with the results obtained from other mathematical models and CFD. It was shown that using a flat 1 mm valve disk thickness with round edges resulted in a 7.5% increase in mass flow rate compared to standard BFVs. On the other hand, using the pinch valve resulted in over a 700% mass flow rate compared to the BFV at a 25% opening position and a 49% increase in flow rate at a 75% opening position. Thus, the pinch valve has the potential to replace the BFV due to its better flow characteristics in any application.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of the Performance Characteristics of Butterfly and Pinch Valves

et al. 2023

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“…Kim et al [15] conducted preliminary numerical simulation to analyze the internal flow field of the butterfly valve, but did not quantify the regulating characteristics. Corbera et al [16,17] used genetic algorithms to optimize the design of butterfly valve plates to improve the regulating characteristics of butterfly valves. Considering that the fluid contains particles, Liu et al [18] found that particle erosion was easy to occur in the front of the butterfly valve plate while cavitation was easy to occur in the rear of the valve plate, which provides guidelines for reducing the butterfly valve plate erosion.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of regulating characteristics between air-ring flow regulating valve and center butterfly valve

Liu

Chen

2021

PLoS ONE

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In this study, a novel air-ring flow regulating valve was proposed to reduce the flow resistance caused by valve structural pressure drop in fluid transportation pipeline system. The regulating characteristics at different valve openings were analyzed by numerical method and the results were compared with the center butterfly valve which is most widely applied in fluid transportation pipeline system. Besides, an experimental system was designed to validate the numerical model in the present study. The results indicated that the simulation results agree well with experimental data. The resistance coefficient of the air-ring flow regulating valve is smaller than that of the center butterfly valve when the valve opening is greater than 67%, and the resistance coefficient is reduced by up to 100% as the valve is fully opened. Both valves maintain approximately equal percentage flow characteristics, the deviation in relative flow coefficient is small. In addition, the wall shear stress of the air-ring flow regulating valve is much smaller than that of the center butterfly valve at the same valve opening, and the maximum velocity in the pipeline system is always smaller than that of the center butterfly valve, which significantly reduces valve surface abrasive erosion and thus prolongs its service life.

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“…The value and change law of the torque have a great influence on the design and use of the valve body, the transmission mechanism, and the control mechanism. Therefore, a lot of research has been conducted on the valve disk torque and the flow characteristics in the butterfly valve [7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…Caraballo [7] used three-dimensional topology and genetic algorithm to optimize the butterfly valve disk. Sun et al [8] studied the effect of friction coefficient on the flow coefficient of a trieccentric butterfly valve by numerical simulation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Shaft Diameter on the Hydrodynamic Torque of Butterfly Valve Disk

Lin

Yin

Tao

et al. 2020

Journal of Fluids Engineering

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In this study, computational fluid dynamics (CFD) software and DES turbulence model were used to simulate butterfly valves with different designs. The effect of shaft diameters on the value and the fluctuation of valve disc torque were studied, and the physical reason was discussed. The simulation results were verified by comparing with the experimental data. Findings revealed that with the closing of the valve, the hydraulic torque of the valve disc first increases and then decreases. Meanwhile the torque decreases gradually with the increase of the shaft diameter. The variation of torque is caused by the change of pressure on both sides of the valve disc. The result also indicates that the fluctuation of torque is induced by the flow separation phenomenon occurs on the valve disc. The fluctuation is significant for the valve opening from 20% to 60%. The strength of the torque fluctuation is greater for the smaller shaft diameter. This study provides a theoretical basis for the design and optimization of butterfly valves.

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Optimization of a butterfly valve disc using 3D topology and genetic algorithms

Cited by 16 publications

References 23 publications

Comparative Analysis of the Performance Characteristics of Butterfly and Pinch Valves

Comparative Analysis of the Performance Characteristics of Butterfly and Pinch Valves

Comparative analysis of regulating characteristics between air-ring flow regulating valve and center butterfly valve

Effect of Shaft Diameter on the Hydrodynamic Torque of Butterfly Valve Disk

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