Greifswald 2024 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
P: Fachverband Plasmaphysik
P 23: Complex Plasmas and Dusty Plasmas II
P 23.4: Vortrag
Donnerstag, 29. Februar 2024, 17:30–17:45, ELP 6: HS 3
Agglomeration, structure and dynamics of binary dust systems — Baoxia Li1, Yang Liu2, Hanyu Tang2, Xiaojiang Tang1, Eric Guo2, and •Feng Huang2 — 1College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China — 2College of Science, China Agricultural University, Beijing 100083, China
Agglomeration and spatial distribution of a binary dusty system formed by dust particles with different sizes were experimentally studied. The agglomeration process of dust particles was characterized by direct micrograph image and the evolution of scattered light as time. The fractal dimension and average particle area in the steady state changing in space were used to show the spatial distribution of the binary dusty system. The effects of temperature and dust particle number on the structure and dynamics of a binary complex plasma system are investigated through two-dimensional (2D) Langevin dynamics simulation. Two kinds of dust particles with different masses are considered in the binary complex system. The particle distribution, Voronoi structure diagram and pair correlation function are used to characterize the system structure. The evolution process of kinetic energy, speed and trajectories of binary particles as time are used to study the dynamical characteristics of the system. The investigations indicate that the structures and dynamics of the binary complex plasma can be obviously affected by system temperature and particle number. This study is helpful for the application of phase separation in practical plasma environment related to different particle species.
Keywords: Binary Complex Plasma; Structure; Dynamics; Particle Number; Temperature