Two successive drops impinging onto a hydrophobic plate

Chun Kuei Chen, Deepanshu Verma, Ta Hui Lin

Research output: Contribution to conferencePaper

Abstract

The impact characteristics of two successive water drops impinging onto a hydrophobic plate were experimentally investigated by using the free-falling drop technique incorporated with a drop severance device. The experiments had focused particularly on the influence of the oblique angle (?=15°) of the impinged solid surface on the impact phenomena. The second drop was introduced to achieve two successive drops impingement at three different impinging conditions identified by the time intervals (?t), namely Case 1: ?t1 = 0.6 ms (the leading drop starting spreading); Case 2: ?t2 = 1.0 ms (the leading drop reaching its maximum spreading); and Case 3: ?t3 = 1.7 ms (the leading drop at the shrink process). The experimental result was showed that the oblique angele where the drop rebounded off the surface after spreading for cases of ?t2 and ?t3. This drop took comparatively more time to come back and strike the surface.

Original languageEnglish
Publication statusPublished - 2019 Jan 1
Event12th Asia-Pacific Conference on Combustion, ASPACC 2019 - Fukuoka, Japan
Duration: 2019 Jul 12019 Jul 5

Conference

Conference12th Asia-Pacific Conference on Combustion, ASPACC 2019
CountryJapan
CityFukuoka
Period19-07-0119-07-05

Fingerprint

impingement
falling
solid surfaces
intervals
Water
water
Experiments

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Condensed Matter Physics

Cite this

Chen, C. K., Verma, D., & Lin, T. H. (2019). Two successive drops impinging onto a hydrophobic plate. Paper presented at 12th Asia-Pacific Conference on Combustion, ASPACC 2019, Fukuoka, Japan.
Chen, Chun Kuei ; Verma, Deepanshu ; Lin, Ta Hui. / Two successive drops impinging onto a hydrophobic plate. Paper presented at 12th Asia-Pacific Conference on Combustion, ASPACC 2019, Fukuoka, Japan.
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Chen, CK, Verma, D & Lin, TH 2019, 'Two successive drops impinging onto a hydrophobic plate', Paper presented at 12th Asia-Pacific Conference on Combustion, ASPACC 2019, Fukuoka, Japan, 19-07-01 - 19-07-05.

Two successive drops impinging onto a hydrophobic plate. / Chen, Chun Kuei; Verma, Deepanshu; Lin, Ta Hui.

2019. Paper presented at 12th Asia-Pacific Conference on Combustion, ASPACC 2019, Fukuoka, Japan.

Research output: Contribution to conferencePaper

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T1 - Two successive drops impinging onto a hydrophobic plate

AU - Chen, Chun Kuei

AU - Verma, Deepanshu

AU - Lin, Ta Hui

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The impact characteristics of two successive water drops impinging onto a hydrophobic plate were experimentally investigated by using the free-falling drop technique incorporated with a drop severance device. The experiments had focused particularly on the influence of the oblique angle (?=15°) of the impinged solid surface on the impact phenomena. The second drop was introduced to achieve two successive drops impingement at three different impinging conditions identified by the time intervals (?t), namely Case 1: ?t1 = 0.6 ms (the leading drop starting spreading); Case 2: ?t2 = 1.0 ms (the leading drop reaching its maximum spreading); and Case 3: ?t3 = 1.7 ms (the leading drop at the shrink process). The experimental result was showed that the oblique angele where the drop rebounded off the surface after spreading for cases of ?t2 and ?t3. This drop took comparatively more time to come back and strike the surface.

AB - The impact characteristics of two successive water drops impinging onto a hydrophobic plate were experimentally investigated by using the free-falling drop technique incorporated with a drop severance device. The experiments had focused particularly on the influence of the oblique angle (?=15°) of the impinged solid surface on the impact phenomena. The second drop was introduced to achieve two successive drops impingement at three different impinging conditions identified by the time intervals (?t), namely Case 1: ?t1 = 0.6 ms (the leading drop starting spreading); Case 2: ?t2 = 1.0 ms (the leading drop reaching its maximum spreading); and Case 3: ?t3 = 1.7 ms (the leading drop at the shrink process). The experimental result was showed that the oblique angele where the drop rebounded off the surface after spreading for cases of ?t2 and ?t3. This drop took comparatively more time to come back and strike the surface.

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Chen CK, Verma D, Lin TH. Two successive drops impinging onto a hydrophobic plate. 2019. Paper presented at 12th Asia-Pacific Conference on Combustion, ASPACC 2019, Fukuoka, Japan.