Thermal and solutal effects on convection inside a polymer solution droplet on a substrate

Masayuki Kaneda, Yuu Takao, Jun Fukai

研究成果: ジャーナルへの寄稿学術誌査読

8 被引用数 (Scopus)

抄録

The convective flow inside polymer solution droplets drying on a lyophobic substrate is numerically studied. The evaporating droplet is presumed as a hemisphere shrinking with time at the constant contact angle. The thermal and solutal effects are simultaneously considered in the computation. The thermal Marangoni convection is induced due to the quick thermal diffusion, and this convection transports the solute resulting in the solutal Marangoni flow. The solutal dependence corresponds to our previous experimental work, but the flow pattern does not. Consideration of the pseudo evaporation rate distribution depending on the contact angle yields to the flow pattern correspondence.

本文言語英語
ページ(範囲)4448-4457
ページ数10
ジャーナルInternational Journal of Heat and Mass Transfer
53
21-22
DOI
出版ステータス出版済み - 2010

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 機械工学
  • 流体および伝熱

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