From shape to behavior:A synthesis of non-spherical particle dynamics in air  

作　　者：Lipeng Lv Bin Zhao 

机构地区：[1]Department of Building Science,School of Architecture,Tsinghua University,Beijing,100084,China [2]Beijing Key Laboratory of Indoor Air Quality Evaluation and Control,Tsinghua University,Beijing,100084,China

出　　处：《Particuology》2025年第1期218-243,共26页颗粒学报(英文版)

摘　　要：Particles suspended in air are often non-spherical shapes, giving rise to shape-dependent complex dynamical processes. Suspended non-spherical particles are associated with a wide array of engineering and scientific scenarios, embodying both their microscopic and macroscopic dynamical behaviors. A comprehensive understanding of the dynamical behaviors of non-spherical particles in air hinges on the accurate identification and description of particle shape, the development of shape-specific models for the forces and torques acting on these particles, and the subsequent micro- and macroscopic phenomena that emerge as a result. This review surveys the latest advancements in the field of non-spherical particles, spanning from shape identification to the characterization of their dynamical properties. An emphasis is placed on establishing a connection between the micro- and macroscopic dynamical behaviors of non-spherical particles. The shape-induced features encompass periodic rotation and preferential orientation, which result in an oscillating migration path and lead to distinctive macroscopic characteristics. The macroscopic features of non-spherical particles are elucidated based on the preceding analysis of forces, torques, and particle-flow interactions. The future perspectives are also discussed in this review.

关 键 词：Identification of shaped aerosol Process safety and human health Dynamics of non spherical particles Shape-induced particle behavior 

分 类 号：O57[理学—粒子物理与原子核物理]