C112 はく離・再付着を伴う対流熱伝達の時間・空間変動特性 : 再付着点近傍における流れ場と熱伝達の対応(OS-5:乱流伝熱の実験とCFDの融合(1))

概要

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Spatio-temporal characteristics of convective heat transfer accompanied by the separated and reattaching flow are investigated. The distribution of heat transfer coefficient in the reattaching region is measured by an infrared thermography. It compared with the distribution of velocity measured by PIV. Both instantaneous measurements show spot-like distributions which indicates that the spot-like flow reattachment causes the spot-like heat transfer enhancement. Moreover, the relation between the position of maximum heat transfer coefficient and the time mean reattaching point were examined. In the case of forward-facing step flow, the position of maximum heat transfer exists about a step height upstream to the reattaching point.
一般社団法人日本機械学会の論文
2011-10-28