CUED Publications database

Thermal imaging study of scalar transport in shallow wakes

Liang, DF and Chong, KJY and Thusyanthan, NI and Tang, HW (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: 16 Jul 2015 13:47
Last Modified: 31 Aug 2015 08:15
DOI: 10.1016/S1001-6058(11)60214-X