Application of an Array of Four Phase-detection Probe Sensors to Hydraulic Jumps at Large Reynolds Numbers

Wang, Hang and Chanson, Hubert (2016). Application of an Array of Four Phase-detection Probe Sensors to Hydraulic Jumps at Large Reynolds Numbers. In: A. Soldati, Proceedings of the 9th International Conference on Multiphase Flow: ICMF2016. 9th International Conference on Multiphase Flow ICMF 2016, Firenze, Italy, (1-6). 22-27 May 2016.

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Author Wang, Hang
Chanson, Hubert
Title of paper Application of an Array of Four Phase-detection Probe Sensors to Hydraulic Jumps at Large Reynolds Numbers
Conference name 9th International Conference on Multiphase Flow ICMF 2016
Conference location Firenze, Italy
Conference dates 22-27 May 2016
Proceedings title Proceedings of the 9th International Conference on Multiphase Flow: ICMF2016
Place of Publication Firenze, Italy
Publisher ICMF
Publication Year 2016
Sub-type Fully published paper
Open Access Status File (Publisher version)
ISBN 97888950608549
Editor A. Soldati
Issue 106
Start page 1
End page 6
Total pages 6
Collection year 2017
Language eng
Abstract/Summary The measurement of turbulent velocity is difficult in hydraulic jumps with relatively high Reynolds numbers because of the presence of entrained air bubbles. This study presents a method aimed to characterise the three-dimensional velocity field in hydraulic jumps using a four-sensor phase-detection probe array. Besides the longitudinal velocity and turbulence intensity that were measured for both positive and negative velocity flow regions, a characteristic instantaneous transverse velocity component was derived together with a measure of its fluctuations. The transverse velocity component characterised the three dimensional nature of turbulent structures. Although the time-averaged flow pattern was two-dimensional and the average transverse velocity was zero, the transverse velocity fluctuation was found to be one order of magnitude smaller than the longitudinal velocity fluctuation.
Keyword Hydraulic jumps
Phase detection probes
Array
Metrology
Two-phase gas-liquid flows
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
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Created: Tue, 24 May 2016, 03:19:20 EST by Hubert Chanson on behalf of School of Civil Engineering