音波で励起された円形衝突噴流の円板熱伝達特性 : 熱工学,内燃機関,動力など
2001 年 67 巻 658 号 p. 1438-1444
詳細
2001 年 67 巻 658 号 p. 1438-1444
The effects of an acoustic excitation and shear layer instability on heat transfer in circular jet impinging upon a heated plate are studied experimentally for jet velocity u = 10 m/s with corresponding Reynolds number 18 800 and acoustically excited condition 40 Hz, 1 W/m2. It is found that average heat transfer with significant acoustic excitation effect can be correlated by impinging length H/d≤4. Flow visualization data suggest qualitatively the heat transfer mechanisum and the associated flow stracture in the near wall region.
