DEM模型模拟工业散装粉工艺校准与应用的视角
近年来，焦点了对离散元素方法（DEM）模型的校准，以提高对模拟预测的置信度。However, most recent reports have focused on calibration for real particles of idealized shape (e.g., spherical) or large size (e.g., >1 mm), presented complex calibration procedures that may be difficult to adopt in an industrial setting, lack documented experimental validation of the approach, or apply to only a specific material of interest. In this article, we present an industrial perspective on application of DEM models centered on a generalized calibration approach for fine powders with low-to-moderate cohesion that is simple, rapid, and requires minimal experimentation.
强调
- •离散元法（DEM）模拟应用的工业透视。
- •Regions of fine powder blends represented with non-rotating spherical parcels.
- •仅基于剪切电池系统校准密集，准静态流动。
- •及时，可以实现散装粉运动学的定量预测。
- •Enable model-guided business decisions related to bulk powder processes.
该方法基于先前的工作，在这里正式化并利用非旋转球形包裹来代表少量粉末，并且在许多情况下，模拟结果在密集系统中具有合理预测散装粉末流动性的预测性。讨论了方法的假设和局限以及一些申请指南。最后，从文献中展示了在工业相关粉末过程中的方法的成功的几个例子，与普通接受的理论或实验数据相比。
威廉·克特哈根，卡尔沃斯格伦，
DEM模型模拟工业散装粉工艺模型的视角，
粉末技术，2022,117301，ISSN 0032-5910，
https://doi.org/10.1016/j.powtec.2022.117301.