Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface
This paper experimentally studied the dynamic behavior of a droplet impacting upon a liquid film, by investigating the effects of the droplet velocity and thickness of the liquid film on the impact behavior of the droplet. The formation of the crown, central jet, and disintegrating droplet from the...
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2016-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=39388&issue_ID=225 |
| _version_ | 1828410806140665856 |
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| author | B. Kang |
| author_facet | B. Kang |
| author_sort | B. Kang |
| collection | DOAJ |
| description | This paper experimentally studied the dynamic behavior of a droplet impacting upon a liquid film, by investigating the effects of the droplet velocity and thickness of the liquid film on the impact behavior of the droplet. The formation of the crown, central jet, and disintegrating droplet from the central jet were visualized by time-delay photography. The time evolutions of the diameter and height of the crown and the height of the central jet were obtained, and the size of the disintegrating droplet from the central jet was measured. The crown diameter and the central jet height were mostly affected by the droplet velocity and the thickness of the liquid film, respectively, while the crown height was influenced by both the droplet velocity and the thickness of the liquid film. The diameter and height of the crown were higher for the case of the faster impacting droplet and thinner liquid film. On the other hand, the height of the central jet was higher for the case of the faster impacting droplet and thicker liquid film. The size of the disintegrating droplet from the central jet heavily depends on the velocity of the impacting droplet. Namely, a larger droplet is produced by a faster impacting droplet. |
| first_indexed | 2024-12-10T12:17:20Z |
| format | Article |
| id | doaj.art-5d0a8993d8d440d59ee9e561267d7810 |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-12-10T12:17:20Z |
| publishDate | 2016-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-5d0a8993d8d440d59ee9e561267d78102022-12-22T01:49:11ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722016-01-0192757765.Experimental Study of the Phenomenon of Droplet Impact upon a Liquid SurfaceB. Kang0Department of Mechanical Engineering, Chonnam National Univ., 77 Yongbong-ro, Buk-gu, Gwangju, 61186, KoreaThis paper experimentally studied the dynamic behavior of a droplet impacting upon a liquid film, by investigating the effects of the droplet velocity and thickness of the liquid film on the impact behavior of the droplet. The formation of the crown, central jet, and disintegrating droplet from the central jet were visualized by time-delay photography. The time evolutions of the diameter and height of the crown and the height of the central jet were obtained, and the size of the disintegrating droplet from the central jet was measured. The crown diameter and the central jet height were mostly affected by the droplet velocity and the thickness of the liquid film, respectively, while the crown height was influenced by both the droplet velocity and the thickness of the liquid film. The diameter and height of the crown were higher for the case of the faster impacting droplet and thinner liquid film. On the other hand, the height of the central jet was higher for the case of the faster impacting droplet and thicker liquid film. The size of the disintegrating droplet from the central jet heavily depends on the velocity of the impacting droplet. Namely, a larger droplet is produced by a faster impacting droplet.http://jafmonline.net/JournalArchive/download?file_ID=39388&issue_ID=225Impacting Droplet; Liquid Film; Splashing. |
| spellingShingle | B. Kang Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface Journal of Applied Fluid Mechanics Impacting Droplet; Liquid Film; Splashing. |
| title | Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface |
| title_full | Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface |
| title_fullStr | Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface |
| title_full_unstemmed | Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface |
| title_short | Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface |
| title_sort | experimental study of the phenomenon of droplet impact upon a liquid surface |
| topic | Impacting Droplet; Liquid Film; Splashing. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=39388&issue_ID=225 |
| work_keys_str_mv | AT bkang experimentalstudyofthephenomenonofdropletimpactuponaliquidsurface |