Giant negative mobility of inertial particles caused by the periodic potential in steady laminar flows

Abstract

Transport of an inertial particle advected by a two-dimensional steady laminar flow is numerically investigated in the presences of a constant force and a periodic potential. Within particular parameter regimes this system exhibits absolute negative mobility, which means that the particle can travel in a direction opposite to the constant force. It is found that the profile of the periodic potential plays an important role in the nonlinear response regime. Absolute negative mobility can be drastically enhanced by applying appropriate periodic potential, the parameter regime for this phenomenon becomes larger and the amplitude of negative mobility grows exceedingly large (giant negative mobility). In addition, giant positive mobility is also observed in the presence of appropriate periodic potential.

7 pages, 7 figures

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Cited by in corpus (5)

• Coexistence of absolute negative mobility and anomalous diffusion
• Absolute negative mobility of an active tracer in a crowded environment
• Anomalous transport in driven periodic systems: distribution of the absolute negative mobility effect in the parameter space
• Paradoxical nature of negative mobility in the weak dissipation regime
• Spontaneous rectification and absolute negative mobility of inertial Brownian particles induced by Gaussian potentials in steady laminar flows