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Slippage on a particle-laden liquid-gas interface in textured microchannels
- Source :
- Physics of Fluids. 30:032101
- Publication Year :
- 2018
- Publisher :
- AIP Publishing, 2018.
-
Abstract
- Despite numerous investigations in the literature on slip flows in textured microchannels, experimental results were seldom in agreement with the theory. It is conjectured that contamination of the liquid-gas interface by impurities might be one of the sources of this discrepancy. However, the effect of impurities on slippage at the liquid-gas interface is neither understood nor previously reported. To this end, this work presents numerical investigation on the flow past a liquid-gas interface embedded with solid particles in textured microchannels. Initially, we present numerical simulations past transverse ribs with cylindrical particles on the liquid-gas interface. A reduction in effective slip length (or slip loss) with respect to the particle-free interface as a function of gas fraction, constriction ratio, and particle position was quantified. A significant slip loss (∼20-80%) was induced, owing to acceleration-deceleration cycles experienced by the liquid advecting across the particle-laden liquid-...
- Subjects :
- Fluid Flow and Transfer Processes
Physics
Liquid gas
Mechanical Engineering
Numerical analysis
Computational Mechanics
02 engineering and technology
Slip (materials science)
Mechanics
Surface finish
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
010305 fluids & plasmas
Condensed Matter::Soft Condensed Matter
Physics::Fluid Dynamics
Transverse plane
Mechanics of Materials
Impurity
0103 physical sciences
Wetting
Slippage
0210 nano-technology
Subjects
Details
- ISSN :
- 10897666 and 10706631
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Physics of Fluids
- Accession number :
- edsair.doi...........6dbf1fdf4497f00e06eefd09f7a0b531
- Full Text :
- https://doi.org/10.1063/1.5017011