Open AccessFocusing of Brownian Particles in a Fluid Induced by the Temperature Difference
Author(s) -
Yuxiang Ying,
Kaixuan Zheng,
Deming Nie
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2097/1/012025
Subject(s) - brownian motion , lattice boltzmann methods , physics , statistical physics , mechanics , reflected brownian motion , work (physics) , brownian excursion , boltzmann constant , geometric brownian motion , classical mechanics , diffusion process , thermodynamics , quantum mechanics , computer science , knowledge management , innovation diffusion
In this work the Brownian motion of particles in a two-dimensional channel was numerically studied through a fluctuating-lattice Boltzmann method. The effects of the fluid temperature difference on the biased Brownian motion of particles were examined. It is shown that the particles are likely to move towards and stay at the low temperature zone. More importantly, the focusing of Brownian particles may be realized if the temperature difference is large enough. This paper also provides a quantitative analysis on this issue.