Numerical Study on Cavitation Flow Characteristics in Diesel Fuel Injector Control Valve

Liu, Jingbin; Liu, Zhenming; Wu, Jiechang; Gu, Xiaolei

doi:10.1007/s12239-022-0078-y

Cited by 6 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They found that the annular groove structure of the spool had a considerable influence on the cavitation attached to the spool and the valve sleeve wall and that the outlet position of the safety valve mainly affected the cavitation intensity near the valve sleeve wall. Liu et al [12] studied the flow characteristics and cavitation in a flow channel of a control valve and analyzed the influence of the operating conditions including jet pulse width, orbital pressure, and ball valve lift. Ren et al [13] investigated the dynamic evolution of cavitation and fuel flow characteristics when a ball valve was operated in a control valve of a high-pressure common rail injector.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Cavitation Characteristics through Butterfly Valve under Different Regulation Conditions

Zhang,

Hu,

Yin

et al. 2024

Processes

View full text Add to dashboard Cite

Butterfly valves are widely used in the pipeline transportation industry due to their safety and reliability, as well as their low manufacturing and operation costs. Cavitation is a common phenomenon in the butterfly valve that can lead to serious damage to a valve’s components. Therefore, it is important to investigate the generation and evolution of cavitation in butterfly valves. In this study, LES and the Zwart model were used as the turbulence and cavitation models, respectively, to simulate cavitation through a butterfly valve. The influence of the valve opening degree and inlet flow velocity on dynamic cavitation through the butterfly valve were studied. Furthermore, the cavitated flow field was examined, along with the performance coefficients of the butterfly valve. With the increase in the incoming flow velocity, the high-speed jet zone over a large-range and low-pressure zone appeared inside the downstream of butterfly valve, which affected its stability and the cavitation generation through the valve. Furthermore, the flow coefficient decreased with the increase in vapor volume. In addition, the results indicated that cavitation was more easily induced for smaller valve opening degrees, and the interaction between cavitation and solid walls was stronger. Due to the existence of cavitation, the flow characteristics of butterfly valves are seriously affected.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical Study of Cavitation Characteristics through Butterfly Valve under Different Regulation Conditions

Zhang,

Hu,

Yin

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

“…At the same time, because the hydraulic valve's flow channel is tiny, the high operating differential pressure and high flow rate at the valve Processes 2023, 11, 2814 2 of 13 ports make cavitation at the valve ports inescapable. The visual observation and noise of cavitation at valve ports is currently an essential problem for deeper understanding in the field of hydraulic control [9,10].…”

Section: Introductionmentioning

confidence: 99%

Cavitation Observation and Noise Characteristics in Rectangular Throttling Groove Spool

Zhang,

Fu,

Zhang

et al. 2023

Processes

View full text Add to dashboard Cite

A hydraulic cavitation platform was developed in order to examine the occurrence of cavitation in the rectangular throttling groove spool and its correlation with noise characteristics. The test valve is constructed using PMMA material, which possesses excellent transparency. This transparency enables direct visual examination of cavitation occurring at the throttle slot. Additionally, high-speed photography is employed to observe the flow characteristics of the valve port, facilitating the analysis of cavitation morphology changes. Furthermore, a noise meter is utilized to measure and record the noise level and its corresponding spectrum. The flow field and flow phenomena at the rectangular throttling groove spool were studied using high-speed photography, noise spectrum analysis, and other methods. It is discovered that back pressure has the greatest influence on cavitation and flow separation, followed by the influence of intake pressure on cavitation morphology and noise. As the back pressure lowers, the cavitation morphology changes from flaky to cloudy, and the cavitation intensity, distribution area, and noise level increase. Background noise and cavitation noise have distinct frequency differences; cavitation noise in the rectangular throttling groove spool is high-frequency noise, with a frequency of more than 8 kHz, and the higher the frequency, the greater the difference in noise value. The magnitude of the alterations in noise intensity is minimal. The noise values exhibit slight variations of 2.3 dB, 4 dB, and 4.3 dB under varying back pressure circumstances of 3 MPa, 4 MPa, and 5 MPa inlet pressure, respectively. It is recommended to use the frequency of cavitation noise to detect the cavitation state and monitor the cavitation process. In the low-frequency region, the cavitation noise in the rectangular throttle groove valve core is not significantly different. Once the center frequency surpasses 3.15 kHz, a discernible distinction emerges, with the magnitude of the discrepancy in noise value increasing as the frequency rises. In other words, the cavitation cloud does not pulsate at one single frequency, but rather in a range of relatively high frequencies (more than 3.15 kHz).

show abstract

Numerical study on cavity-vortex evolution in cavitation flow in nuclear control valves with different openings and structural parameters

Xu,

Wang,

Fang

et al. 2025

Annals of Nuclear Energy

View full text Add to dashboard Cite

Numerical Study on Cavitation Flow Characteristics in Diesel Fuel Injector Control Valve

Cited by 6 publications

References 17 publications

Numerical Study of Cavitation Characteristics through Butterfly Valve under Different Regulation Conditions

Numerical Study of Cavitation Characteristics through Butterfly Valve under Different Regulation Conditions

Cavitation Observation and Noise Characteristics in Rectangular Throttling Groove Spool

Numerical study on cavity-vortex evolution in cavitation flow in nuclear control valves with different openings and structural parameters

Contact Info

Product

Resources

About