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Simulations of slip flow on nanobubble-laden surfaces
- Source :
- Journal of Physics : Condensed Matter, 23(18). Institute of Physics
- Publication Year :
- 2011
- Publisher :
- Institute of Physics, 2011.
-
Abstract
- On microstructured hydrophobic surfaces, geometrical patterns may lead to the appearance of a superhydrophobic state, where gas bubbles at the surface can have a strong impact on the fluid flow along such surfaces. In particular, they can strongly influence a detected slip at the surface. We present two-phase lattice Boltzmann simulations of a flow over structured surfaces with attached gas bubbles and demonstrate how the detected slip depends on the pattern geometry, the bulk pressure, or the shear rate. Since a large slip leads to reduced friction, our results allow to assist in the optimization of microchannel flows for large throughput.<br />22 pages, 12 figures
- Subjects :
- Materials science
Surface Properties
Microfluidics
Biophysics
Molecular Conformation
Lattice Boltzmann methods
FOS: Physical sciences
Slip (materials science)
Condensed Matter - Soft Condensed Matter
01 natural sciences
010305 fluids & plasmas
Physics::Fluid Dynamics
0103 physical sciences
Slip flow
Fluid dynamics
Nanotechnology
Computer Simulation
General Materials Science
010306 general physics
Microbubbles
Models, Statistical
Microchannel
Fluid Dynamics (physics.flu-dyn)
Physics - Fluid Dynamics
DNA
Mechanics
Models, Theoretical
Condensed Matter Physics
Biomechanical Phenomena
Shear rate
Hydrophobic surfaces
Soft Condensed Matter (cond-mat.soft)
Algorithms
Subjects
Details
- Language :
- English
- ISSN :
- 1361648X and 09538984
- Volume :
- 23
- Issue :
- 18
- Database :
- OpenAIRE
- Journal :
- Journal of Physics: Condensed Matter
- Accession number :
- edsair.doi.dedup.....e960093cbbdc33da4e8ded32f8be3ac3