One-dimensional mass transport with dynamic external potentials

doi:10.1088/1674-1056/28/2/020505

中国物理B ›› 2019, Vol. 28 ›› Issue (2): 20505-020505.doi: 10.1088/1674-1056/28/2/020505

One-dimensional mass transport with dynamic external potentials

Xingxing Zhang(张星星), Dongqin Zheng(郑冬琴), Weirong Zhong(钟伟荣)

Siyuan Laboratory, Department of Physics, Jinan University, Guangzhou 510632, China

收稿日期:2018-11-01 修回日期:2018-12-12 出版日期:2019-02-05 发布日期:2019-02-05
通讯作者: Dongqin Zheng, Weirong Zhong E-mail:zhengdq@jnu.edu.cn;wrzhong@hotmail.com
基金资助:
Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2014A030313367).

One-dimensional mass transport with dynamic external potentials

Xingxing Zhang(张星星), Dongqin Zheng(郑冬琴), Weirong Zhong(钟伟荣)

Siyuan Laboratory, Department of Physics, Jinan University, Guangzhou 510632, China

Received:2018-11-01 Revised:2018-12-12 Online:2019-02-05 Published:2019-02-05
Contact: Dongqin Zheng, Weirong Zhong E-mail:zhengdq@jnu.edu.cn;wrzhong@hotmail.com
Supported by:
Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2014A030313367).

摘要/Abstract

摘要： Using non-equilibrium molecular dynamics and the Monte Carlo method, we simulated mass transport in a one-dimensional channel with dynamic external potentials. This study focuses on the influence of the dynamic external potential field on the mass transport. Traveling wave and standing wave potential fields have been employed as our dynamic potential field. We found that mass transport can be promoted by the traveling wave field when the external potential moves along the direction of the mass current. When the standing wave field is exerted on the channel, the channel is found to work like a switch. The mass current can be “on” or “off” by adjusting the standing wave frequency. The effects of the period number, the amplitude and the velocity of the external potential on the mass transport are also discussed. Our research provides valuable advice for the control o particle transport through one-dimensional channels.

关键词: dynamic external potentials, traveling wave, standing wave, mass transport

Abstract: Using non-equilibrium molecular dynamics and the Monte Carlo method, we simulated mass transport in a one-dimensional channel with dynamic external potentials. This study focuses on the influence of the dynamic external potential field on the mass transport. Traveling wave and standing wave potential fields have been employed as our dynamic potential field. We found that mass transport can be promoted by the traveling wave field when the external potential moves along the direction of the mass current. When the standing wave field is exerted on the channel, the channel is found to work like a switch. The mass current can be “on” or “off” by adjusting the standing wave frequency. The effects of the period number, the amplitude and the velocity of the external potential on the mass transport are also discussed. Our research provides valuable advice for the control o particle transport through one-dimensional channels.

Key words: dynamic external potentials, traveling wave, standing wave, mass transport

中图分类号: (Classical transport)

05.60.Cd

66.10.cg (Mass diffusion, including self-diffusion, mutual diffusion, tracer diffusion, etc.) 47.60.Dx (Flows in ducts and channels) 47.61.-k (Micro- and nano- scale flow phenomena)

张星星, 郑冬琴, 钟伟荣. One-dimensional mass transport with dynamic external potentials[J]. 中国物理B, 2019, 28(2): 20505-020505.

Xingxing Zhang(张星星), Dongqin Zheng(郑冬琴), Weirong Zhong(钟伟荣). One-dimensional mass transport with dynamic external potentials[J]. Chin. Phys. B, 2019, 28(2): 20505-020505.

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One-dimensional mass transport with dynamic external potentials

One-dimensional mass transport with dynamic external potentials

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