Using thermal tracers to estimate flow velocities of shallow flows: laboratory and field experiments

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Title:Using thermal tracers to estimate flow velocities of shallow flows: laboratory and field experiments
Creators:
de Lima, Rui L.P.; DINDYMO, Molengraaffsingel 12-14, 2629 JD Delft, The Netherlands.
Abrantes, João R.C.B.; Department of Civil Engineering, Faculty of Science and Technology of the University of Coimbra (DEC-FCTUC), Rua Luís Reis Santos, Campus II - University of Coimbra, 3030-788 Coimbra, Portugal.
de Lima, João L.M.P.; plima at dec dot uc dot pt; Department of Civil Engineering, Faculty of Science and Technology of the University of Coimbra (DEC-FCTUC), Rua Luís Reis Santos, Campus II - University of Coimbra, 3030-788 Coimbra, Portugal.
de Lima, M. Isabel P.; Department of Civil Engineering, Faculty of Science and Technology of the University of Coimbra (DEC-FCTUC), Rua Luís Reis Santos, Campus II - University of Coimbra, 3030-788 Coimbra, Portugal.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 63, 3, pp. 255-262
Uncontrolled Keywords:shallow flow velocities, thermal tracer, infrared thermography, flow visualization

Abstract

Accurate measurement of shallow flows is important for hydraulics, hydrology and water resources management. The objective of this paper is to discuss a technique for shallow flow and overland flow velocity estimation that uses infrared thermography. Laboratory flumes and different bare, vegetated and paved field surfaces were used to test the technique. Results show that shallow flow surface velocities estimated using thermal tracers and infrared technology are similar to estimates obtained using the Acoustic Doppler Velocimeter; similar results were also obtained for overland flow velocity estimates using thermography, here comparing with the dye tracer technique. The thermographic approach revealed some potential as a flow visualization technique, and leaves space for future studies and research.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Using thermal tracers to estimate flow velocities of shallow flows: laboratory and field experiments
Translated title:Using thermal tracers to estimate flow velocities of shallow flows: laboratory and field experiments
Creators:
de Lima, Rui L.P.; DINDYMO, Molengraaffsingel 12-14, 2629 JD Delft, The Netherlands.
Abrantes, João R.C.B.; Department of Civil Engineering, Faculty of Science and Technology of the University of Coimbra (DEC-FCTUC), Rua Luís Reis Santos, Campus II - University of Coimbra, 3030-788 Coimbra, Portugal.
de Lima, João L.M.P.; plima at dec dot uc dot pt; Department of Civil Engineering, Faculty of Science and Technology of the University of Coimbra (DEC-FCTUC), Rua Luís Reis Santos, Campus II - University of Coimbra, 3030-788 Coimbra, Portugal.
de Lima, M. Isabel P.; Department of Civil Engineering, Faculty of Science and Technology of the University of Coimbra (DEC-FCTUC), Rua Luís Reis Santos, Campus II - University of Coimbra, 3030-788 Coimbra, Portugal.
Uncontrolled Keywords:shallow flow velocities, thermal tracer, infrared thermography, flow visualization
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:63
Number:3
Page Range:pp. 255-262
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8527
Item Type:Article
Deposited On:17 Dec 2015 12:39
Last Modified:17 Dec 2015 11:39

Citation

de Lima, Rui L.P.; Abrantes, João R.C.B.; de Lima, João L.M.P.; de Lima, M. Isabel P. (2015) Using thermal tracers to estimate flow velocities of shallow flows: laboratory and field experiments. Journal of Hydrology and Hydromechanics, 63 (3). pp. 255-262. ISSN 0042-790X

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