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采用三维建模软件建立新型超细搅拌磨机的流场模型,并用FLUENT对新型超细搅拌磨机进行数值模拟,得出了流场速度、剪切率和黏性能量耗散率的分布情况。拟合分析了黏性能量耗散率与转速之间的关系,并分析了不同截面黏性能量耗散率的变化规律,得出正多边形筒体有助于增大黏性能量耗散率的结论。研究结果可为新型超细搅拌磨机的设计和优化提供理论依据。
The flow field model of a new type of ultrafine stirring mill was established by using the three-dimensional modeling software and the numerical simulation of the new type of ultrafine stirring mill was carried out with FLUENT. The distribution of the rate of flow rate, the shear rate and the viscous energy dissipation rate were obtained . The relationship between the energy dissipation rate and the rotational speed of the viscous energy is analyzed by the fitting method. The variation law of the energy dissipation rate of the viscous energy is analyzed. It is concluded that the regular polygon cylinder can increase the viscous energy dissipation rate in conclusion. The research results can provide the theoretical basis for the design and optimization of the new ultrafine agitating mill.