年次大会
Online ISSN : 2424-2667
ISSN-L : 2424-2667
セッションID: S053035
会議情報
S053035 化学反応を伴う液相二次元噴流中の乱流拡散係数と乱流シュミット数
渡邉 智昭酒井 康彦長田 孝二寺島 修伊藤 靖仁
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会議録・要旨集 フリー

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抄録
In a planar liquid jet with a second-order reaction (A + B →R), the concentrations of reactive species and the streamwise velocity are simultaneously measured by an I-type hot-film probe and an optical fiber probe based on the light absorption spectrometry. The eddy diffusivity of reactive species is obtained from the mean concentration gradient and the turbulent mass flux. The results show that the eddy diffusivity of species A becomes small due to the chemical reaction, and the effects of the chemical reaction on the eddy diffusivity depend on the Damkoler number. These results imply that the gradient diffusion model should be used with considerations of the effects of chemical reactions on eddy diffusivity.
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© 2012 一般社団法人 日本機械学会
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