1928 長方形噴出口近傍に設置した2平板が及ぼす流れ場および衝突面熱伝達への影響(S21-5 噴流,後流及びはく離流れの流動解析と応用(5),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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Measurement of pressure and heat transfer on a jet target plate and flow visualization were carried out for mounting two parallel plates near both sides of the nozzle exit. The jet velocity was kept constant at 10m/s for the experiment on the pressure and heat transfer and the Reynolds number based on nozzle width, h=15mm, was about 9500. The distance, H, between the nozzle and the target plate was 2, 3, 4 and 5 times of h. The space, W, between two parallel plates changed from 2.67h to 6.67h or 8h. The flow directions for the presence of the two parallel plates irregularly changed for top and bottom. The root mean square value of fluctuating wall pressure and local Nusselt number on the target plate varied with W/h values. The maximum local Nusselt number were augmented by about 50% compared to the ones for normal impinging jet.
一般社団法人日本機械学会の論文
2008-08-02