ホログラフィー実時間干渉法による物質伝達率分布の可視化

概要

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The distribution of the mass transfer rate has been visualized by holographic interferometry. The real-time surface displacement of the naphthalene plate caused by the sublimation in the flow field was measured, from which the real-time distribution of the heat transfer coefficient was estimated. At first, the validity of this method and its accuracy were checked by using a laminar boundary-layer flow on the flat plate. Then this method was applied to backward-facing step flow in ducts with various shapes. It is clarified that this method appliable to the measurement of the mass transfer coefficient in various flow fields having a duct wall. The visualized distribution of the mass transfer rate for backward facing step flow correlated well with the frequency of high level turbulence spots.
一般社団法人日本機械学会の論文
1990-04-25