We calculate the effective long-term convective velocity and dispersive motion of an ellipsoidal Brownian particle in three dimensions when it is subjected to a constant external force. This long-term motion results as a "net" average behavior from the particle rotation and translation on short time scales. Accordingly, we apply a systematic multi-scale technique to derive the effective equations of motion valid on long times. We verify our theoretical results by comparing them to numerical simulations. Copyright (C) EPLA, 2016

Diffusion of a Brownian ellipsoid in a force field / Aurell, Erik; Bo, Stefano; Dias, Marcelo; Eichhorn, Ralf; Marino, Raffaele. - In: EUROPHYSICS LETTERS. - ISSN 1286-4854. - STAMPA. - 114:(2016), pp. 30005.1-30005.6. [10.1209/0295-5075/114/30005]

Diffusion of a Brownian ellipsoid in a force field

Marino, Raffaele
2016

Abstract

We calculate the effective long-term convective velocity and dispersive motion of an ellipsoidal Brownian particle in three dimensions when it is subjected to a constant external force. This long-term motion results as a "net" average behavior from the particle rotation and translation on short time scales. Accordingly, we apply a systematic multi-scale technique to derive the effective equations of motion valid on long times. We verify our theoretical results by comparing them to numerical simulations. Copyright (C) EPLA, 2016
2016
114
1
6
Aurell, Erik; Bo, Stefano; Dias, Marcelo; Eichhorn, Ralf; Marino, Raffaele
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1304709
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