Superhydrophobic copper tubes with possible flow enhancement and drag reduction

SHIRTCLIFFE, N.J., MCHALE, G., NEWTON, M.I. and ZHANG, Y., 2009. Superhydrophobic copper tubes with possible flow enhancement and drag reduction. ACS Applied Materials and Interfaces, 1 (6), pp. 1316-1323. ISSN 1944-8244

[img]
Preview
Text
200245_6636 Shirtcliffe Publisher.pdf

Download (4MB) | Preview

Abstract

The transport of a Newtonian liquid through a smooth pipe or tube is dominated by the frictional drag on the liquid against the walls. The resistance to flow against a solid can, however, be reduced by introducing a layer of gas at or near the boundary between the solid and liquid. This can occur by the vaporization of liquid at a surface at a temperature above the Leidenfrost point, by a cushion of air (e.g. below a hovercraft), or by producing bubbles at the interface. These methods require a continuous energy input, but a more recent discovery is the possibility of using a superhydrophobic surface. Most reported research uses small sections of lithographically patterned surfaces and rarely considers pressure differences or varying flow rates. In this work we present a method for creating a uniform superhydrophobic nanoribbon layer on the inside of round copper tubes of millimetric internal radius.

Item Type: Journal article
Publication Title: ACS Applied Materials and Interfaces
Creators: Shirtcliffe, N.J., McHale, G., Newton, M.I. and Zhang, Y.
Publisher: American Chemical Society (ACS Publications)
Place of Publication: Washington, DC
Date: 2009
Volume: 1
Number: 6
ISSN: 1944-8244
Identifiers:
NumberType
10.1021/am9001937DOI
Rights: Reprinted with permsision from [citation above]. Copyright © 2009 American Chemical Society.
Divisions: Schools > School of Science and Technology
Depositing User: EPrints Services
Date Added: 09 Oct 2015 09:56
Last Modified: 09 Jun 2017 13:14
URI: http://irep.ntu.ac.uk/id/eprint/5074

Actions (login required)

Edit View Edit View

Views

Views per month over past year

Downloads

Downloads per month over past year