转子速率正弦变化对流体混合的影响

摘要

建立了圆形转子混合设备的二维流动有限元模型，采用网格重叠技术，利用粒子跟踪法对瞬态混炼流场进行了数值模拟，对不同相位差下的的分散混合性能、分布混合性能、线拉伸以及混合效率进行了统计和比较；分析了相位角对流体混沌混合对效率的影响，为密炼机驱动系统的新的优化方向提供了一定的理论参考。%The 2D finite element model of a chaotic mixer with two circular rotors was established, the mesh superposition technique was used to simulate the transient flow field of the mixer.By using particle tracking method, the dispersive mixing performance,distributive mixing performance,line stretching and mixing efficiency between mixers with different phase angles were compared statistically. Effect of phase angle on fluid mixing efficiency was analyzed.