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Volumn 80, Issue 1, 2009, Pages

Self-propelled motion of a droplet induced by Marangoni-driven spreading

Author keywords

[No Author keywords available]

Indexed keywords

AQUEOUS PHASE; CHEMICAL NONEQUILIBRIUM; CONCENTRATION OF; INITIAL CONDITIONS; MARANGONI; PETRI DISH; SELF-PROPELLED MOTION;

EID: 68949092237     PISSN: 15393755     EISSN: 15502376     Source Type: Journal    
DOI: 10.1103/PhysRevE.80.016303     Document Type: Article
Times cited : (96)

References (21)
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    • E-PLEEE8-80-121906 for movies: circular motion in a circular Petri dish (movie 1), beeline motion between two parallel walls in a rectangular vessel (movie 2), Marangoni vortex induced by surface-tension gradient (movie 3), a droplet passes through a narrow gap I (movie 4), a droplet passes through a narrow gap II (movie 5), experimental tracking of beeline motion in a circular Petri dish (movie 6), experimental tracking of mode switching (movie 7). For more information on EPAPS, see
    • See EPAPS Document No. E-PLEEE8-80-121906 for movies: circular motion in a circular Petri dish (movie 1), beeline motion between two parallel walls in a rectangular vessel (movie 2), Marangoni vortex induced by surface-tension gradient (movie 3), a droplet passes through a narrow gap I (movie 4), a droplet passes through a narrow gap II (movie 5), experimental tracking of beeline motion in a circular Petri dish (movie 6), experimental tracking of mode switching (movie 7). For more information on EPAPS, see http://www.aip.org/ pubservs/epaps.html.
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    • For liquids, the Hamaker constant A=24πγ δ2 (δ: minimum space between molecules when the liquid starts to rupture). Assume that δ is the same for pure water and aqueous solution (c<3.6g/100ml at 20°C). We obtain the Hamaker constant for an air-oil-solution system Aaos = Ao - (γa/s Ao Apurewater / γa/purewater) 1/2. We have Aaos >0 (Ao =66× 10-20 J, Apurewater =3.7× 10-20 J, and γa/s < γa/purewater). See 10.1016/0001-8686(72)85001-2
    • For liquids, the Hamaker constant A=24πγ δ2 (δ: minimum space between molecules when the liquid starts to rupture). Assume that δ is the same for pure water and aqueous solution (c<3.6g/100ml at 20°C). We obtain the Hamaker constant for an air-oil-solution system Aaos = Ao - (γa/s Ao Apurewater / γa/purewater) 1/2. We have Aaos >0 (Ao =66× 10-20 J, Apurewater =3.7× 10-20 J, and γa/s < γa/purewater). See J. Visser, Adv. Colloid Interface Sci. 3, 331 (1972). 10.1016/0001-8686(72)85001-2
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    • We set β=60°and β′ =40°when V<200μl and c=2.8vol%, β=60°and β′ =40°when V<175μl and c=3.0vol%, and β=55°and β′ =45°when V<225μl and c=3.3vol%.
    • We set β=60°and β′ =40°when V<200μl and c=2.8vol%, β=60°and β′ =40°when V<175μl and c=3.0vol%, and β=55°and β′ =45°when V<225μl and c=3.3vol%.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.