Dynamics of a ratchet gear powered by an active granular bath

被引：9

作者：

Jerez, Michael Jade Y. ^{[1
,2
]}

Bonachita, Mike A. ^{[1
,2
]}

Confesor, Mark Nolan P. ^{[1
,2
]}

机构：

[1] MSU Iligan Inst Technol, Dept Phys, Andres Bonifacio Ave, Iligan 9200, Philippines

[2] MSU Iligan Inst Technol, PRISM, Andres Bonifacio Ave, Iligan 9200, Philippines

来源：

PHYSICAL REVIEW E | 2020年 / 101卷 / 02期

关键词：

SYSTEMS;

D O I：

10.1103/PhysRevE.101.022604

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Recent experiments show universal features of ratchet gear dynamics that are powered by different types of active baths. We investigate further for the case of a ratchet gear in a bath of self-propelling granular rods (SPRs). The resulting angular velocity was found to follow a nonmonotonic dependence to the SPR concentration similar to the observation from other active bath systems. This behavior is caused by the interplay of the momentum transfer of the SPRs in the trapping regions of the gear and the mean velocity of the SPRs inside the bath. For all SPR concentrations, we found that the angular velocity is proportional to the product of the number of SPRs pushing the gear and the SPRs mean velocity.

引用

页数：5

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