Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 23, Issue 18, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/23/18/184106
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Funding
- DFG [Ha 4382/2-1]
- Academy of Finland under HPC-EUROPA2 [228398, 135857]
- Academy of Finland (AKA) [135857, 135857] Funding Source: Academy of Finland (AKA)
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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 give assistance in the optimization of microchannel flows for large throughput.
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