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

Title:

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

Creator:

de Lima, Rui L.P., Abrantes, João R.C.B., de Lima, João L.M.P., and de Lima, M. Isabel P.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:0421dddf-206e-4a60-9feb-57b2237d234d
uuid:0421dddf-206e-4a60-9feb-57b2237d234d
doi:10.1515/johh-2015-0028

Subject:

shallow flow velocities, thermal tracer, infrared thermography, and flow visualization

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

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.

Language:

Slovak

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

255-262

Source:

Journal of hydrology and hydromechanics | 2015 Volume:63 | Number:3

Harvested from:

CDK

Metadata only:

false