Visualisation and quantitative analysis of flat continuous water jet structure

0450617 - ÚGN 2016 RIV CZ eng C - Conference Paper (international conference)
Ščučka, Jiří - Zeleňák, Michal - Foldyna, Josef - Lehocká, D. - Votavová, H.
Visualisation and quantitative analysis of flat continuous water jet structure.
Vodní paprsek 2015 - výzkum, vývoj, aplikace. Ostrava: Ústav geoniky AV ČR, v.v.i, 2015 - (Sitek, L.; Klichová, D.), s. 195-205. ISBN 978-80-86407-56-2.
[Vodní paprsek 2015 - výzkum, vývoj, aplikace. Velké Losiny (CZ), 06.10.2015-08.10.2015]
R&D Projects: GA MŠMT ED2.1.00/03.0082; GA MŠMT(CZ) LO1406
Institutional support: RVO:68145535
Keywords : descaling * flat continuous water jet * visualisation * shadowgraph technique * image analysis
Subject RIV: JQ - Machines ; Tools

The results of an experiment focused on the visualisation and structural analysis of flat continuous high-speed water jet used in descaling process are presented in this paper. The aim of the work was to test the applicability of the shadowgraph technique, combined with image processing and analysis methods, to visualise the water jet structure and analyse its main quantitative parameters. Volume percentage of water and air in the water jet structure, size of droplets and water bunches and other parameters were measured on digital images taken at various distances from the nozzle outlet. Knowledge of the water jet structure below the nozzle can facilitate an optimal setting of technological conditions of the water jetting with respect to the maximum disintegration effect on treated material. The described methods can also provide important information for development of new nozzles or entire water jetting tools for disintegration of materials.
Permanent Link: http://hdl.handle.net/11104/0251881