Detectable inertial effects on Brownian transport through narrow pores
Detectable inertial effects on Brownian transport through narrow pores
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DOI：
10.1209/0295-5075/98/50002
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发表时间：
2012-06-01
期刊：
影响因子：
1.8
通讯作者：
Schmid, Gerhard
中科院分区：
文献类型：
--
作者：
Ghosh, Pulak Kumar;Haenggi, Peter;Schmid, Gerhard
我们研究了在有限阻尼区中，悬浮布朗粒子在波纹窄通道中的传输。我们证明，只要沟道瓶颈的宽度小于合适的粒子扩散长度，惯性修正就不能被忽略，这取决于温度和直流驱动的强度。因此，通过足够窄的狭窄的传输被证明对悬浮液的粘度很敏感。讨论了其在胶体体系中的应用。版权所有(C)Epla，2012
We investigate the transport of suspended Brownian particles dc driven along corrugated narrow channels in a regime of finite damping. We demonstrate that inertial corrections cannot be neglected as long as the width of the channel bottlenecks is smaller than an appropriate particle diffusion length, which depends on both the temperature and the strength of the dc drive. Therefore, transport through sufficiently narrow constrictions turns out to be sensitive to the viscosity of the suspension fluid. Applications to colloidal systems are discussed. Copyright (C) EPLA, 2012