CUED Publications database

Thermal imaging study of scalar transport in shallow wakes

Liang, D-F and Chong, KJY and Thusyanthan, NI and Tang, H-W (2012) Thermal imaging study of scalar transport in shallow wakes. Journal of Hydrodynamics, 24. pp. 17-24. ISSN 1001-6058

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Abstract

The thermal imaging technique relies on the usage of infrared signal to detect the temperature field. Using temperature as a flow tracer, thermography is used to investigate the scalar transport in the shallow-water wake generated by an emergent circular cylinder. Thermal imaging is demonstrated to be a good quantitative flow visualization technique for studying turbulent mixing phenomena in shallow waters. A key advantage of the thermal imaging method over other scalar measurement techniques, such as the Laser Induced Fluorescence (LIF) and Planar Concentration Analysis (PCA) methods, is that it involves a very simple experimental setup. The dispersion characteristics captured with this technique are found to be similar to past studies with traditional measurement techniques. © 2012 Publishing House for Journal of Hydrodynamics.

Item Type: Article
Uncontrolled Keywords: environmental hydraulics shallow wake thermal imaging turbulent mixing vortex street
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron job
Date Deposited: 04 Feb 2015 22:14
Last Modified: 01 May 2015 19:14
DOI: 10.1016/S1001-6058(11)60214-X