Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 140, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4867283
Keywords
-
Funding
- National Natural Science Foundation of China (NNSFC) [11175067]
- PCSIRT [IRT1243]
- Natural Science Foundation of Guangdong Province, China [S2011010003323]
- Scientific Research Foundation of Graduate School of South China Normal University
Ask authors/readers for more resources
Rectified transport of active ellipsoidal particles is numerically investigated in a two-dimensional asymmetric potential. The out-of-equilibrium condition for the active particle is an intrinsic property, which can break thermodynamical equilibrium and induce the directed transport. It is found that the perfect sphere particle can facilitate the rectification, while the needlelike particle destroys the directed transport. There exist optimized values of the parameters (the self-propelled velocity, the torque acting on the body) at which the average velocity takes its maximal value. For the ellipsoidal particle with not large asymmetric parameter, the average velocity decreases with increasing the rotational diffusion rate, while for the needlelike particle (very large asymmetric parameter), the average velocity is a peaked function of the rotational diffusion rate. By introducing a finite load, particles with different shapes (or different self-propelled velocities) will move to the opposite directions, which is able to separate particles of different shapes (or different self-propelled velocities). (C) 2014 AIP Publishing LLC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available