Date of download: 12/28/2017 Copyright © ASME. All rights reserved. From: Separation of Entrained Air Bubbles From Oil in the Intake Socket of a Pump Using Oleophilic and Oleophobic Woven and Nonwoven Fabrics J. Fluids Eng. 2017;140(3):031301-031301-16. doi:10.1115/1.4037944 Figure Legend: Overview of the texture (a)–(d) and wetting behavior (e)–(l) of the tested woven and nonwoven polyester filter fabrics. (a) and (b) Top view of woven filter fabrics with a mesh size of 22 μm (twill weave) (a) and 51 μm (plain or linen weave) (b). (c) and (d) Top view of nonwoven filter fabrics with an average pore size of 33 μm (c) and 60 μm (d). Wetting behavior of untreated (oleophilic) ((e), (g), (i), and (k)) and surface treated (oleophobic) ((f), (h), (j), and (l)) fabrics with a drop of white oil (15 μl). Woven filter fabrics with a mean mesh size of 22 μm ((e) and (f)) and 51 μm ((g) and (h)). Nonwoven filter fabrics with an average pore size of about 33 μm (i), (j), and about 60 μm (k), (l). (a)–(d) SEM micrographs.