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基于圆管浆体螺旋流中颗粒的受力分析以及浆体螺旋流速度场的探讨,建立起浆体螺旋流中颗粒轨迹的运动方程和参数方程,指出水平轴向浆体流中的颗粒运动主要由螺旋流拖曳和有效重力下沉合成为偏轴线向心螺旋前进。运用FLUENT软件进行颗粒运动轨迹仿真,显示螺旋浆体流中颗粒运动轨迹偏轴线向心螺旋的特征,且小颗粒聚集在管道中心,大颗粒分布在外围,与理论方程吻合较好。
Based on the force analysis of the particles in the spiral flow of the slurry and the discussion of the velocity field of the slurry, the equation of motion and the parameter equation of the particle trajectory in the spiral flow of the slurry are established. The particle motion in the horizontal slurry flow Mainly by the spiral flow dragging and effective gravity subsidence into eccentric axis to the heart spiral forward. FLUENT software was used to simulate the trajectory of particles, which showed that the trajectory of particles moving in the direction of spiral axis was eccentric to the heart. The small particles were concentrated in the center of the pipeline, and the large particles distributed in the periphery, which was in good agreement with the theoretical equation.