Formation of thermal flow fields and chemical transport in air and water by atmospheric plasma

Tetsuji Shimizu, Yutaka Iwafuchi, Gregor E. Morfill, Takehiko Sato

研究成果: Article査読

55 被引用数 (Scopus)

抄録

Cold atmospheric plasma is a potential tool for medical purposes, e.g. disinfection/sterilization. In order for it to be effective and functional, it is crucial to understand the transport mechanism of chemically reactive species in air as well as in liquid. An atmospheric plasma discharge was produced between a platinum pin electrode and the surface of water. The thermal flow field of a cold atmospheric plasma as well as its chemical components was measured. A gas flow with a velocity of around 15ms-1 to the water's surface was shown to be induced by the discharge. This air flow induced a circulating flow in the water from the discharge point at the water's surface because of friction. It was also demonstrated that the chemical components generated in air dissolved in water and the properties of the water changed. The reactive species were believed to be distributed mainly by convective transport in water, because the variation in the pH profile indicated by a methyl red solution resembled the induced flow pattern.

本文言語English
論文番号053025
ジャーナルNew Journal of Physics
13
DOI
出版ステータスPublished - 2011 5

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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