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首页> 外文会议>World Congress on Particle Technology >PEPT Validation of a CFD-DEM Model of a Fine Quartz Particle (60 μm) Behaviour in Stirred Water
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PEPT Validation of a CFD-DEM Model of a Fine Quartz Particle (60 μm) Behaviour in Stirred Water

机译：搅拌水中精细石英颗粒（60μm）行为的CFD-DEM模型的PEST验证

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摘要

A computational fluid dynamics (CFD) simulation of a Rushton impeller mixing water inside a baffled vessel was used to input steady state fluid drag forces into a discrete element method (DEM) simulation of a fine quartz particle of 60 μm freely moving inside the vessel. To validate the simulated behaviour of the particle, a modular positron emission particle tracking (PEPT) camera was used to track a real quartz particle of a diameter between 53 and 63 μm. The particle used as the tracer was created from a 1180 μm particle labelled with ~(18)F radionuclide inside a cyclotron beam. A comparison of typical trajectory and velocities of the particle for both the model (CFD-DEM) and the measurement (PEPT) is presented. The results show that the simulation approach used is suitable to represent the behaviour of small particle of this type in water like fluid as similar trajectories and velocities are present.
机译：挡板血管内的峰值叶轮混合水的计算流体动力学（CFD）模拟用于将稳态流体阻力输入到离散的元件方法（DEM）模拟60μm的离散元件（DEM）模拟中，其自由地在容器内部自由地移动。为了验证粒子的模拟行为，模块化正电子发射粒子跟踪（Pept）相机用于跟踪直径在53和63μm之间的真实石英颗粒。用作示踪剂的颗粒由标记的1180μm颗粒中标记，其中〜（18）F放射性核素内部在回旋光束内。介绍了模型（CFD-DEM）和测量（PEPT）的典型轨迹和粒子的比较。结果表明，所用的模拟方法适用于将这种类型的小粒子的小颗粒在水中的水中的小颗粒作为存在的轨迹和速度存在。

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