Change in the mode of spontaneous motion of an alcohol droplet caused by a temperature change

Ken Nagai; Yutaka Sumino; Hiroyuki Kitahata; Kenichi Yoshikawa

doi:10.1143/PTPS.161.286

Change in the mode of spontaneous motion of an alcohol droplet caused by a temperature change

Ken Nagai, Yutaka Sumino, Hiroyuki Kitahata, Kenichi Yoshikawa

Department of Applied Physics

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

An alcohol (pentanol) droplet exhibits spontaneous motion on an aqueous solution, driven by a solutal Marangoni effect. We found that the mode of such droplet motion changes depending on the temperature of the aqueous phase. When the temperature of the aqueous phase is 20°C, a droplet with a volume of 1 μl exhibits vectorial motion, whereas when the temperature is 25°C, the droplet exhibits irregular motion. We discuss the mode change in relation to the solubility of pentanol in water.

Original language	English
Pages (from-to)	286-289
Number of pages	4
Journal	Progress of Theoretical Physics Supplement
Volume	161
DOIs	https://doi.org/10.1143/PTPS.161.286
Publication status	Published - 2006

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abstract = "An alcohol (pentanol) droplet exhibits spontaneous motion on an aqueous solution, driven by a solutal Marangoni effect. We found that the mode of such droplet motion changes depending on the temperature of the aqueous phase. When the temperature of the aqueous phase is 20°C, a droplet with a volume of 1 μl exhibits vectorial motion, whereas when the temperature is 25°C, the droplet exhibits irregular motion. We discuss the mode change in relation to the solubility of pentanol in water.",

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AB - An alcohol (pentanol) droplet exhibits spontaneous motion on an aqueous solution, driven by a solutal Marangoni effect. We found that the mode of such droplet motion changes depending on the temperature of the aqueous phase. When the temperature of the aqueous phase is 20°C, a droplet with a volume of 1 μl exhibits vectorial motion, whereas when the temperature is 25°C, the droplet exhibits irregular motion. We discuss the mode change in relation to the solubility of pentanol in water.

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Change in the mode of spontaneous motion of an alcohol droplet caused by a temperature change

Abstract

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