Comments on "Slip coefficient in nanoscale pore flow" (arXiv:0805.1666)
Zotin K.-H. Chu
TL;DR
This paper critiques and discusses the findings of Sokhan and Quirke regarding the slip coefficient in nanoscale pore flow, highlighting inconsistencies with previous measurements and analyzing behavior at different Knudsen numbers.
Contribution
It provides critical remarks on existing results about slip coefficient independence from external force and explores slip behavior at various nanopore sizes and flow regimes.
Findings
Identifies inconsistency with previous measurements regarding slip coefficient independence
Discusses abrupt changes in slip coefficient at high Knudsen numbers
Analyzes slip behavior in smaller nanopores
Abstract
We make some remarks on Sokhan and Quirke's [{\it Phys. Rev. E} 78, 015301(R) (2008)] paper (arXiv:0805.1666). Sokhan and Quirke mentioned that, considering their main result, {the slip coefficient is independent of the external force (flux)} which is not consistent with previous measurements and approaches. We also discuss the sudden changes of the slip coefficient for larger Knudsen numbers or smaller nanopores.
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Taxonomy
TopicsLattice Boltzmann Simulation Studies · Nanopore and Nanochannel Transport Studies · Enhanced Oil Recovery Techniques