DEM

Keynote lecture in Particle design, characterisation and measurement session at the UK–China International Particle Technology Forum VII.

Oral Presentation at 8th International Conference on Discrete Element Methods: DEM8

Discrete element modelling of a monotonic triaxial test is carried out with the aim of studying the stress-strain response of railway ballast in a large-scale tester.

This paper presents the application of a digital twin in industrial manufacturing with an impact pin mill and twin screw granulator as exemplar studies. A new particle breakage model subject to impact loading pertaining to the impact pin mill was developed, which enables the contribution of the normal and tangential velocity components to be rationalised. In the twin screw granulation, a coupled model with DEM and PBM is proposed with a new breakage kernel developed for the TSG. The application of digital twin is hoped to facilitate the understanding of particulate process and help transit from digital design to digital operation.

This volume contains the extended abstracts of the 7$^{th}$ UK–China International Particle Technology Forum (PTFVII) and the annual UK Particle Technology Forum which was held jointly in Edinburgh UK on 28$^{th}$ - 31$^{st}$ July 2019. The UK–China International Particle Technology Forum is a not-for-profit conference series run every two years in rotation between the UK and China. It was initiated in 2006 to help facilitate and foster collaborations between communities in both the UK and China in the multidisciplinary field of particle science and technology. The inclusion of the word ‘International’ since 2013 acknowledges the worldwide participation and popularity of this forum.

Poster at Royal Society of Chemistry Formative Formulation Workshop, Maxwell Centre, University of Cambridge

Wet granulation is a process used to create larger stable agglomerates (granules) from fine powders. However, despite wide adoption, it is often inefficiently operated, with high recycle ratios in continuous processes and high rejection rates in batch processes. This numerical study simulates a GEA ConsiGma™ 1 Twin Screw Granulator (TSG), following a standard framework for model-driven design.

Handling of particulate products is a task that is at the core of many industries, from pharmaceuticals to foods to mining. Measuring the flowability of such materials or characterising the properties for a DEM cohesive material model in a simulation is not necessarily a trivial task.

Invited talk on the Model Driven Design framework from the Models MPP project at CPI’s Integrated Control in Powder Formulations event.

Presentation on the Model Driven Design framework at IFPRI Invited Session on the outcomes of the Model Driven Design in Particulate Products Manufacturing Project.