Experimental Study on Developing Flexible Tubes with Turbulent Drag Reduction Effects

DOI

10.2991/icmmita-15.2015.283How to use a DOI?

Keywords

Flexible tubes; Sleeve-structured tube; Turbulent drag reduction.

Abstract

In order to probe into developing technology for pipe fluid transportation with drag reducing effects by using a flexible tube, an experimental study was performed on the effects of turbulent drag reduction by using sleeve-structured flexible tubes in the operating conditions that there are water and air with pressure to be almost equivalent to the pressure on inner wall surface, on external wall surface of the flexible tubes. The results are found as follow: the thinner the flexible tubes, the bigger the decrease rate of the friction coefficient is; compared the drag reduction rates in operating condition of pressure balancing air with those in operating condition of pressure balancing water, the drag reduction rates for former are bigger, at Re=17500, the drag reduction rates of the flexible tubes with thickness of 2mm, 3mm and 4mm, are about 12%, 10%, 9%. This would offer a new view for developing technology of efficient fluid transportation.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shupeng Cai
AU  - Gao Peng
AU  - Binwen Luo
PY  - 2015/11
DA  - 2015/11
TI  - Experimental Study on Developing Flexible Tubes with Turbulent Drag Reduction Effects
BT  - Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications
PB  - Atlantis Press
SP  - 1535
EP  - 1540
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmita-15.2015.283
DO  - 10.2991/icmmita-15.2015.283
ID  - Cai2015/11
ER  -