Publication detail
Liquid jet dispersion after impact on a highly curved surface
HÁJEK, O. MALÝ, M. JEDELSKÝ, J. VANKESWARAM, S. CEJPEK, O. PRINZ, F. JÍCHA, M.
English title
Liquid jet dispersion after impact on a highly curved surface
Type
journal article in Web of Science
Language
en
Original abstract
A liquid jet impacting on a wire mesh is a phenomenon that occurs in such industrial applications as rotating packed beds or agricultural spraying. To derive a fundamental understanding of the behaviour of a dispersion generated by the whole mesh, a simple geometric case needs to be studied. This paper focuses on the dispersion of a liquid jet impacting on a single stainless steel rod studied with a high-speed visualisation. It is found that two liquid sheets are formed with sheet characteristics described by a dispersion angle & alpha;e, a sheet velocity vs, and a breakup length Lb. Three stages of the angular development of the dispersion are observed based on the liquid flow rate and the exit orifice diameter. A correlation for the dispersion angle growth is proposed based on the experimental results. Perforated, segmented and wave-assisted sheet breakup regimes are found in the recorded images with their presence dependent on the impact velocity. A correlation for the breakup length is proposed for the sheets based on similarities with flat fan nozzle theory.
English abstract
A liquid jet impacting on a wire mesh is a phenomenon that occurs in such industrial applications as rotating packed beds or agricultural spraying. To derive a fundamental understanding of the behaviour of a dispersion generated by the whole mesh, a simple geometric case needs to be studied. This paper focuses on the dispersion of a liquid jet impacting on a single stainless steel rod studied with a high-speed visualisation. It is found that two liquid sheets are formed with sheet characteristics described by a dispersion angle & alpha;e, a sheet velocity vs, and a breakup length Lb. Three stages of the angular development of the dispersion are observed based on the liquid flow rate and the exit orifice diameter. A correlation for the dispersion angle growth is proposed based on the experimental results. Perforated, segmented and wave-assisted sheet breakup regimes are found in the recorded images with their presence dependent on the impact velocity. A correlation for the breakup length is proposed for the sheets based on similarities with flat fan nozzle theory.
Keywords in English
Atomization; Liquid jet; Impact; Liquid sheet; Breakup; Curved surface
Released
24.06.2023
Publisher
ELSEVIER SCIENCE INC
Location
NEW YORK
ISSN
1879-2286
Volume
149
Number
1
Pages count
12
BIBTEX
@article{BUT181553,
author="Ondřej {Hájek} and Milan {Malý} and Jan {Jedelský} and Sai Krishna {Vankeswaram} and Ondřej {Cejpek} and František {Prinz} and Miroslav {Jícha},
title="Liquid jet dispersion after impact on a highly curved surface",
year="2023",
volume="149",
number="1",
month="June",
publisher="ELSEVIER SCIENCE INC",
address="NEW YORK",
issn="1879-2286"
}