Erosion of an Arrow-Type Check Valve Duo to Liquid–Solid Flow Based on Computational Fluid Dynamics
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The computational model of an arrow-type check valve coupling with a combined continuous-phase and discrete-phase models has been used to predict the particle erosion of an arrow-type check valve by computational fluid dynamics method and Fluent software. The flow field distribution of liquid–solid flow is captured under various valve opening conditions. The effects of inlet velocity, particle flow rate and particle diameter are discussed, respectively, in detail, which are also captured the particle erosion of an arrow-type check valve under different flow parameters. The results reveal that the valve opening has an important effect on the pressure, velocity and turbulence intensity. However, the changes are not obvious as the valve opening is more than 15 mm. The results also indicate that the small cylinders of an arrow-type check valve are severe erosion, and erosion rate of an arrow-type check valve is most sensitive to the changes in inlet velocity especially when the speed is over 10 m/s. Compared with inlet velocity, the influence of particle flow rate and particle diameter on erosion is weak.
KeywordsArrow-type check valve Discrete-phase model (DPM) Particle erosion Computational fluid dynamics (CFD) Liquid–solid flow
The authors thank the anonymous reviewers and editor for their valuable comments and suggestions to improve the research. And this research received support from Southwest Petroleum University, Chengdu, China.
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