Experimental and numerical study of a choke valve in a turbulent flow

Huovinen, Mika; Kolehmainen, Jari; Koponen, Petri; Nissila, T.; Saarenrinne, Pentti

doi:10.1016/j.flowmeasinst.2015.06.005

Cited by 25 publications

(5 citation statements)

References 9 publications

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“…The main model parameters, including k-kinetic energy of the turbulence and ε-kinetic energy dissipation factor, can be calculated based on the transport equations Equations ( 1) and (2). The nature of turbulence is described using Intensity I and Length scale options, Equations ( 3) and ( 4), respectively.…”

Section: Cfd Model Parametersmentioning

confidence: 99%

“…Simic and Herakovic [1] used CFD methods to reduce the axial flow force acting on the slider in a small seat valve by means of spool and housing geometry optimization. Huovinen et al [2] conducted both simulation and experimental research on a choke valve in a turbulent flow using two turbulence models, k − ε and k − ω, respectively. Improvement in characteristics of a proportional spool valve by means of geometrical modifications of the spool was the subject of several works including Simic et al [3], Amirante et al [4], Park [5], as well as Lisowski and Filo [6].…”

Section: Introductionmentioning

confidence: 99%

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Pressure Loss Reduction in an Innovative Directional Poppet Control Valve

Filo

Lisowski

Rajda³

2020

Energies

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This article presents the results of computational fluid dynamics (CFD) analysis of an innovative directional control valve consisting of four poppet seat valves and two electromagnets enclosed inside a single body. The valve has a unique design, allowing the use of any poppet valve configuration. Both normally opened (NO) and normally closed (NC) seat valves can be applied. The combination of four universal valve seats and two electromagnets gives a wide range of flow path configurations. This significantly increases the possibility of practical applications. However, due to the significant miniaturization of the valve body and the requirement to obtain necessary connections between flow paths, multiple geometrically complex channels had to be made inside the body. Hence, the main purpose of work was to shape the geometry of the flow channels in such a way as to minimize pressure losses. During the CFD analyses velocity distribution in flow channels and pressure distribution on the walls were determined. The results were used to obtain pressure loss as a function of flow rate, which was then verified by means of laboratory experiments conducted on a test bench.

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Section: Cfd Model Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pressure Loss Reduction in an Innovative Directional Poppet Control Valve

Filo

Lisowski

Rajda³

2020

Energies

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“…Yaghoubi et al [17] investigated the influence of the throttle sleeve stage on global valve cavitation erosion. Huovinen et al [18] simulated a butterfly-type choke valve; in the simulations, the k-and k-turbulence models were compared. Beune et al [19] used CFX software to predict the emissions and start-up characteristics of a high-pressure safety valve and verified the accuracy of the numerical model based on experimental results.…”

Section: Introductionmentioning

confidence: 99%

Flow Characteristics Study of High-Parameter Multi-Stage Sleeve Control Valve

Sun,

Wu,

et al. 2022

Processes

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This study considers a multi-stage sleeve control valve with different opening degrees. The flow capacity of the numerical model is calculated using the actual working conditions of the control valve in a nuclear power plant as a baseline. A flow resistance test bench is then used to measure the flow capacity under each opening degree, and the flow characteristic curve is plotted to verify the accuracy of the numerical model. Based on CFX software simulations of different opening speeds, pressures, turbulent kinetic energy clouds, and set detection curves, analysis of the flow characteristics of the multi-stage sleeve valve with high parameters shows that, with an increase in the degree of opening, the valve speed will also increase. However, the speed at the socket orifice is slightly different, exhibiting a higher opening in the middle and lower openings on both sides. A maximum speed of 792.4 m/s is found in the 40% valve orifice. A maximum value of the turbulent kinetic energy of 1.4 × 10 4m2/s2 occurs in the throttle hole of the valve seat with an opening of 80%. The source of the aerodynamic noise is obtained in this study, which is of great significance to the decompression and noise reduction in multi-stage sleeve valves.

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“…Based on this, the research on the regulation characteristics of regulating valves (butterfly valves, ball valves, globe valves, diaphragm valves, etc.) becomes an important research topic in the field of fluid transportation pipeline system [5][6][7][8][9][10].…”

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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Experimental and numerical study of a choke valve in a turbulent flow

Cited by 25 publications

References 9 publications

Pressure Loss Reduction in an Innovative Directional Poppet Control Valve

Pressure Loss Reduction in an Innovative Directional Poppet Control Valve

Flow Characteristics Study of High-Parameter Multi-Stage Sleeve Control Valve

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

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