Investigation on the Characteristics of Water Flow over a Backward Facing Step under High Reynolds Number with Particle Image Velocimetry

DOI

10.2991/itms-15.2015.62How to use a DOI?

Keywords

PIV; a backward facing step; high Reynolds number; the separation and reattachment flow region; hydraulic characteristics

Abstract

The detailed experimental investigation on the 2D steady flow over a backward facing step in 30 Reynolds numbers range of 500 < Re < 50000 is carried out using particle image velocimetry ( PIV) and the separation and reattachment flow region over a backward facing step is displayed on a particle image. The characteristic of time-averaged flow field structure, the velocity distribution on the different sections along flow direction and vertical direction, and the change law of the length of separation and reattachment region and the location of vortex center are obtained from low Reynolds number (Re=506) to high Reynolds number (Re=47901).

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  - Xinjian Fan
AU  - Shiqiang Wu
AU  - Hui Zhou
AU  - Xiao Xiao
AU  - Yong Wang
PY  - 2015/11
DA  - 2015/11
TI  - Investigation on the Characteristics of Water Flow over a Backward Facing Step under High Reynolds Number with Particle Image Velocimetry
BT  - Proceedings of the 2015 International Conference on Industrial Technology and Management Science
PB  - Atlantis Press
SP  - 262
EP  - 266
SN  - 2352-538X
UR  - https://doi.org/10.2991/itms-15.2015.62
DO  - 10.2991/itms-15.2015.62
ID  - Fan2015/11
ER  -