Wall-mass effects on hydrodynamic boundary slip

Nikolaos Asproulis, Dimitris Drikakis

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

This paper investigates the combined effects of surface stiffness κ and wall particles' mass mw on the slip length. It aims to enhance our understanding of the momentum and energy transfer across solid-liquid interfaces. Elastic spring potentials are employed to simulate the thermal solid walls and model the surface stiffness κ. The thermal oscillation amplitude is primarily dictated by values of stiffness, whereas the oscillating frequency is proportional to √κ/mw. It is shown that for cases with variable wall mass the relation of slip length and thermal oscillating frequencies can be approximated by a “master” curve according to which the length initially increases, then approaches a peak value, and afterwards is reduced toward an asymptotic value.
LanguageEnglish
Article number031504
Number of pages6
JournalPhysical Review E
Volume84
Issue number3
DOIs
Publication statusPublished - 23 Sep 2011

Fingerprint

Slip
Hydrodynamics
stiffness
Stiffness
slip
hydrodynamics
springs (elastic)
particle mass
Energy Transfer
liquid-solid interfaces
momentum transfer
Momentum
Directly proportional
energy transfer
Liquid
Oscillation
oscillations
Curve
curves
Model

Keywords

  • energy transfer
  • asymptotic values
  • boundary slip
  • combined effect
  • elastic springs
  • oscillating frequencies
  • solid-liquid interfaces
  • surface stiffness
  • thermal oscillations
  • stiffness

Cite this

Asproulis, Nikolaos ; Drikakis, Dimitris. / Wall-mass effects on hydrodynamic boundary slip. In: Physical Review E. 2011 ; Vol. 84, No. 3.
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Wall-mass effects on hydrodynamic boundary slip. / Asproulis, Nikolaos; Drikakis, Dimitris.

In: Physical Review E, Vol. 84, No. 3, 031504, 23.09.2011.

Research output: Contribution to journalArticle

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