Numerical Analysis of the Factors Influencing the Erosion of the Valve Port of a High-Speed On/Off Valve
Source abstract
Abstract
Aiming at the problem of valve port erosion caused by contaminated particles, a three-dimensional prediction model of valve orifice erosion was established based on computational fluid dynamics (CFD) and erosion theory, considering the influence of the valve port eddy current on the oil flow. The discrete phase model (DPM) of fluent is used to obtain the orifice erosion location and erosion rate, and the causes of erosion of the high-speed on/off valve are analyzed. On this basis, several factors influencing valve port erosion are simulated to investigate the relationship between particle collision behavior and valve port erosion morphology under different factors, and the change rule of valve port erosion under different factors is analyzed. The results show that the high-speed on/off valve service life decreases with a larger cone angle of the spool, a larger pressure difference at the valve port, a larger proportion of large particle contaminants in the oil, a higher oil contamination level, and a larger filter aperture. In addition, the grey relational analysis method is used to clarify the pressure difference at the valve port, the particle size, and the filter aperture as the three most important factors affecting the erosion of the valve port of a high-speed on/off valve.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Erosion and Abrasive Machining · Particle Dynamics in Fluid Flows · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Key Laboratory of Fluid Power and Intelligent Electro-Hydraulic Control, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Funding
National Key R&D Program, Key Technology of Design and Manufacture of a Micro High-Speed On/Off Valve
References (27)
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