All Title Author
Keywords Abstract


An effective-charge model for the trapping of impurities of fluids in channels with nanostructured walls

DOI: 10.1186/1556-276X-8-19

Keywords: Nanostructures embedded in larger systems, Fluid impurity trapping in nanostructures, Effective-charge density

Full-Text   Cite this paper   Add to My Lib

Abstract:

We present model equations for the trapping and accumulation of particles in a cylindrical channel with nanostructured inner walls when a fluid passes through, carrying a moderate load of impurities. The basic ingredient of the model is the introduction of a phenomenological ‘effective-charge density’ of the walls, related to the electrical charges exposed in the nanotexture. The effective charge is gradually reduced as the flow runs through the channel and the trapped impurities cover the internal walls. Based on the proposed equations, the position and time dependence of the areal density of trapped impurities, and the filtration performance, may be calculated. It is proposed that experimentally testing these results may help to understand the enhanced trapping capability observed in many diverse nanotextured channel structures.

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

微信:OALib Journal