Shuo Li (D3), Department of Nuclear Engineering and Management, received Student Award
On 9th October 2021, Shuo Li (D3) , Department of Nuclear Engineering and Management, received “Student Award” at the 56th Summer Symposium.
＜Name of award and short explanation about the award＞
SPTJ Summer Symposium Student Award
It was given for the excellent oral presentation by student at this symposium.
＜About awarded research＞
The coarse-grained model of the discrete element method (DEM) has been developed for the large-scale powder simulation, in which the coarse-grained particle represents a group of original particles. In our previous studies, the adequacy of the coarse-grain model was proven in the spouted beds through verification and validation tests by examining the correlation between solid mixing and macroscopic behavior of the solid particles. In this study, an effective technique, namely Lanczos proper orthogonal decomposition (LPOD), is employed to capture the dominant features underlying the system dynamics for the powder flow in a spouted bed. The distributions of POD modes and the related energy levels between the original particle and coarse-grained particle systems are compared. The adequacy of the coarse-grained model is further validated by the similarity of the flow patterns in both systems. In other word, the coarse-grained model can effectively reproduce the major characteristics the flow patterns in the original particle system. Consequently, the LPOD method is shown to be an effective technique to validate the coarse-grained model in DEM simulations.
＜Your impression & future plan＞
It is my great honor to win this award. I would like to express my sincere appreciation to every member in my lab, especially Dr. Guangtao Duan and my supervisor Prof. Mikio Sakai. For future, I will make my best effort to continue my research about the numerical simulation.