熱工学コンファレンス講演論文集
Online ISSN : 2424-290X
セッションID: E214
会議情報
E214 時系列Dual-Plane Stereoscopic PIVの開発(計測1)
平山 哲店橋 護宮内 敏雄
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会議録・要旨集 フリー

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抄録
To investigate fine scale structure of turbulent flows, time-resolved dual-plane stereoscopic particle image velocimetry (TRDPSPIV) system has been developed using high-repetition-rate Nd: YAG lasers for industrial processing and high-speed CMOS cameras. This system provides all three velocity components and nine velocity gradients with high spatial and temporal resolution. The developed system was applied to velocity measurements of a turbulent jet. It is shown that probability density functions of the measured nine velocity gradients agree well with those obtained from direct numerical simulation (DNS). From the results of TRDPSPIV, coherent fine scale eddies of turbulence are identified and those characteristics such as diameter and asymmetry are shown.
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© 2006 一般社団法人 日本機械学会
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