The motion of particles is discussed as affected by physical properties, such as coefficient of friction, and the design of the disc including the vane type, pitch angle of the vane and surface of the vane. The influence of factors that may have an effect are studied theoretically by means of simulations as well as experimentally. When the simulation and measurement results were compared, large differences were found between them. The simulation results showed a clear effect of the coefficient of friction. This effect was, however, hardly visible in the measurements despite differences in vane surfaces that gave large differences in coefficient of friction (0.25 to 0.35 for a nylon surface versus 0.40 to 0.45 for a stainless steel surface). The measurements showed that an increase of the mass flow by a factor of two in the range tested (between 0.3 and 1.0 kg/s) resulted in an increase in the distance projected by the particles of about 1 m. The influence of vane type and pitch angle have been analysed in simulation studies and the effect proved to be dependent on the coefficient of friction.
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机译：讨论了粒子的运动受物理特性（例如摩擦系数）以及圆盘设计（包括叶片类型，叶片的俯仰角和叶片表面）的影响。从理论上和实验上都研究了可能产生影响的因素的影响。比较仿真结果和测量结果时，发现两者之间存在很大差异。仿真结果显示了摩擦系数的明显影响。但是，尽管叶片表面的差异使摩擦系数差异很大（尼龙表面为0.25至0.35，而不锈钢表面为0.40至0.45），但在测量中几乎看不到这种效果。测量结果表明，在测试范围内（0.3至1.0 kg / s），质量流量增加了两倍，导致粒子投射的距离增加了约1 m。在仿真研究中分析了叶片类型和桨距角的影响，并证明其效果取决于摩擦系数。
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