Effect of the Opening Degree on Evolution of Cryogenic Cavitation Through a Butterfly Valve

Zhang, Guang; Wang, Wei Wei; Wu, Ze Yong; Chen, De Sheng; Kim, Heuy Dong; Lin, Zhe

doi:10.2139/ssrn.4380274

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2024

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Cited by 2 publications

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“…The cavitation number ( σ ) is a dimensionless parameter used to characterize a fluid’s cavitation state and gauge the likelihood and extent of cavitation development [44] , [45] , [46] . A smaller cavitation number ( σ ) indicates a higher probability of fluid cavitation.…”

Section: Resultsmentioning

confidence: 99%

Investigations on cavitation flow and vorticity transport in a jet pump cavitation reactor with variable area ratios

Jia,

Zhang,

Tang

et al. 2024

Ultrasonics Sonochemistry

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Section: Resultsmentioning

confidence: 99%

Investigations on cavitation flow and vorticity transport in a jet pump cavitation reactor with variable area ratios

Jia,

Zhang,

Tang

et al. 2024

Ultrasonics Sonochemistry

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“…He et al found that the intensity of cavitation in the valve increases with increasing oil temperature [17,18]. Zhang et al revealed the relationship between lowtemperature cavitation and vortex structure [19]. Previous studies have mainly focused on the effect of structure and operating conditions on cavitation, but less so on studies of noise levels.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Valve Seat Cone Angle on Small Opening Direct-Acting Relief Valve Cavitation Noise

Qiu,

Yang,

Zhang

et al. 2024

Machines

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Direct-acting relief valves are important pressure-control components in hydraulic systems; however, noise problems are now common. This study aimed to reduce and numerically analyze the valve cavitation and noise using the Zwart–Gerber–Belamri (ZBG) model with the Ffowcs Williams and Hawkings (FW–H) model to optimize the design based on the sound field perspective. First, a direct-acting relief valve flow field model was established to determine the relationship between the seat structure and the degree of cavitation through a CFD (Computational Fluid Dynamics) simulation. Second, sound field analysis was conducted based on the cavitation and non-cavitation flow fields, respectively, and the resulting noise levels were compared. Finally, prototypes of the relief valve were manufactured, and noise levels between the original and optimized valves were compared. The results revealed that cavitation within the relief valve generated noise while optimizing the valve seat cone angle suppressed this phenomenon, thereby reducing the noise emitted by the optimized valve by 18.2 dB compared to the original valve. These findings can serve as a guide for designing and optimizing direct-acting relief valves.

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Effect of the Opening Degree on Evolution of Cryogenic Cavitation Through a Butterfly Valve

Cited by 2 publications

References 0 publications

Investigations on cavitation flow and vorticity transport in a jet pump cavitation reactor with variable area ratios

Investigations on cavitation flow and vorticity transport in a jet pump cavitation reactor with variable area ratios

Investigation of Valve Seat Cone Angle on Small Opening Direct-Acting Relief Valve Cavitation Noise

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