Simulation Analysis of Gas-liquid Two-phase Flow in Gear Forming Grinding Based on FLUENT
[Purposes]This paper conducts the research on the problem of poor cooling effect and low sur-face liquid flow in gear grinding.[Methods]The grinding flow field was simulated by setting different grinding wheel speed.The VOF gas-liquid two-phase flow model is used to simulate different nozzle po-sitions in the liquid flow field.[Findings]The results showed that the rotation of the grinding wheel drove the surrounding gas to form a return flow,which prevented the jet from entering the grinding pro-cessing area.The fluid speed of the 30 m/s grinding wheel is 50%higher than that of the 20 m/s grinding wheel,which can meet the requirements of grinding processing and the return flow strength is moderate.The nozzle position of 40 mm vertical distance from the gear surface can better spray the grinding fluid to the grinding area,and the cooling effect is optimal.[Conclusions]The optimal grinding wheel speed and nozzle position can provide certain guiding significance for the energy saving and consumption reduction in the actual processing.
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