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Mixed flow fields of water and low density particles in the stirred tank of the single size six-blade ruston turbine are calculated by the large eddy simulation and multiphase flow model. The effect of the mounting location of the paddle on two phase flow field is studied. The result shows that with the lower mounting location of the paddle, the scale of the vortex near the paddle is smaller and the intensity is lower. When the height of mounting location is amount to the middle of the stirred tank, there are a large number of vortex structures near the paddle. And the strength is high. These vortexes are major contributors to the mixing. While when the height of mounting location is too low, the upper material and the lower material can not effectively mix with each other, which is unable to reach the using effect.

Research on the effect of the mounting location of the ruston turbine on two phase flow field