The results show that the mixing vane is the main factor of lateral velocity, spring and dimple influent the axial velocity, drag coefficient largely, and the effect of spring is larger.

• 结果表明：搅混叶片是产生横向速度的主要原因；弹簧和刚突对轴向速度和阻力系数有较大影响，其中，弹簧的影响更大；