0132 後方ステップによるはく離流れに関する実験的研究 : 2次元ステップ(OS1-6 噴流,後流および剥離流れ現象の解明と制御,オーガナイズドセッション)

概要

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In the present study, the flow over a backward-facing step has been investigated experimentally. The relative step height to boundary layer thickness of an incoming flow are H/δ_0 = 0.5, 1.0 and 1.5. Mean and fluctuating velocity distributions for H/δ_0 = 0.5 and 1.0 were examined by a stationary hot-wire and flying hot-wire anemometer with I-type probe. Streamwise distributions of the forward-flow fraction, γ near the wall were calculated, and then reattachment points of the separating flow were evaluated as a location of γ= 50%. In the range of H/δ_0 = 0.5 to 1.5 in the present study, the reattachment length is almost constant.
一般社団法人日本機械学会の論文
2010-10-29