### Abstract

Original language | English |
---|---|

Article number | 051402 |

Pages (from-to) | 051402-1/10 |

Number of pages | 10 |

Journal | Physical Review E |

Volume | 79 |

Issue number | 5 |

DOIs | |

Publication status | Published - 2009 |

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### Cite this

*Physical Review E*,

*79*(5), 051402-1/10. [051402]. https://doi.org/10.1103/PhysRevE.79.051402

}

*Physical Review E*, vol. 79, no. 5, 051402, pp. 051402-1/10. https://doi.org/10.1103/PhysRevE.79.051402

**Hydrodynamics of confined colloidal fluids in two dimensions.** / Sané, J.; Padding, J.T.; Louis, A.A.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Hydrodynamics of confined colloidal fluids in two dimensions

AU - Sané, J.

AU - Padding, J.T.

AU - Louis, A.A.

PY - 2009

Y1 - 2009

N2 - We apply a hybrid molecular dynamics and mesoscopic simulation technique to study the dynamics of two-dimensional colloidal disks in confined geometries. We calculate the velocity autocorrelation functions and observe the predicted t-1 long-time hydrodynamic tail that characterizes unconfined fluids, as well as more complex oscillating behavior and negative tails for strongly confined geometries. Because the t-1 tail of the velocity autocorrelation function is cut off for longer times in finite systems, the related diffusion coefficient does not diverge but instead depends logarithmically on the overall size of the system. The Langevin equation gives a poor approximation to the velocity autocorrelation function at both short and long times. © 2009 The American Physical Society.

AB - We apply a hybrid molecular dynamics and mesoscopic simulation technique to study the dynamics of two-dimensional colloidal disks in confined geometries. We calculate the velocity autocorrelation functions and observe the predicted t-1 long-time hydrodynamic tail that characterizes unconfined fluids, as well as more complex oscillating behavior and negative tails for strongly confined geometries. Because the t-1 tail of the velocity autocorrelation function is cut off for longer times in finite systems, the related diffusion coefficient does not diverge but instead depends logarithmically on the overall size of the system. The Langevin equation gives a poor approximation to the velocity autocorrelation function at both short and long times. © 2009 The American Physical Society.

U2 - 10.1103/PhysRevE.79.051402

DO - 10.1103/PhysRevE.79.051402

M3 - Article

C2 - 19518451

VL - 79

SP - 051402-1/10

JO - Physical Review E

JF - Physical Review E

SN - 1539-3755

IS - 5

M1 - 051402

ER -