Prediction of fluid velocity slip at solid surfaces

Jesper Schmidt Hansen, Billy Todd, Peter Daivis

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The observed flow enhancement in highly confining geometries is believed to be caused by fluid velocity slip at the solid wall surface. Here we present a simple and highly accurate method to predict this slip using equilibrium molecular dynamics. Unlike previous equilibrium molecular dynamics methods, it allows us to directly compute the intrinsic wall-fluid friction coefficient rather than an empirical friction coefficient that includes all sources of friction for planar shear flow. The slip length predicted by our method is in excellent agreement with the slip length obtained from direct nonequilibrium molecular dynamics simulations.
Original languageEnglish
JournalPhysical Review E (Statistical, Nonlinear, and Soft Matter Physics)
Volume84
Issue number1
Number of pages8
ISSN1539-3755
DOIs
Publication statusPublished - 2011

Cite this

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title = "Prediction of fluid velocity slip at solid surfaces",
abstract = "The observed flow enhancement in highly confining geometries is believed to be caused by fluid velocity slip at the solid wall surface. Here we present a simple and highly accurate method to predict this slip using equilibrium molecular dynamics. Unlike previous equilibrium molecular dynamics methods, it allows us to directly compute the intrinsic wall-fluid friction coefficient rather than an empirical friction coefficient that includes all sources of friction for planar shear flow. The slip length predicted by our method is in excellent agreement with the slip length obtained from direct nonequilibrium molecular dynamics simulations.",
author = "Hansen, {Jesper Schmidt} and Billy Todd and Peter Daivis",
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language = "English",
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Prediction of fluid velocity slip at solid surfaces. / Hansen, Jesper Schmidt; Todd, Billy; Daivis, Peter.

In: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 84, No. 1, 2011.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Prediction of fluid velocity slip at solid surfaces

AU - Hansen, Jesper Schmidt

AU - Todd, Billy

AU - Daivis, Peter

PY - 2011

Y1 - 2011

N2 - The observed flow enhancement in highly confining geometries is believed to be caused by fluid velocity slip at the solid wall surface. Here we present a simple and highly accurate method to predict this slip using equilibrium molecular dynamics. Unlike previous equilibrium molecular dynamics methods, it allows us to directly compute the intrinsic wall-fluid friction coefficient rather than an empirical friction coefficient that includes all sources of friction for planar shear flow. The slip length predicted by our method is in excellent agreement with the slip length obtained from direct nonequilibrium molecular dynamics simulations.

AB - The observed flow enhancement in highly confining geometries is believed to be caused by fluid velocity slip at the solid wall surface. Here we present a simple and highly accurate method to predict this slip using equilibrium molecular dynamics. Unlike previous equilibrium molecular dynamics methods, it allows us to directly compute the intrinsic wall-fluid friction coefficient rather than an empirical friction coefficient that includes all sources of friction for planar shear flow. The slip length predicted by our method is in excellent agreement with the slip length obtained from direct nonequilibrium molecular dynamics simulations.

U2 - 10.1103/PhysRevE.84.016313

DO - 10.1103/PhysRevE.84.016313

M3 - Journal article

VL - 84

JO - Physical Review E

JF - Physical Review E

SN - 2470-0045

IS - 1

ER -