G134 斜め後方ステップを過ぎる三次元流れ場のエネルギ収支(G-13 せん断流れ(3),一般講演)

概要

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The flow over a swept backward-facing step was investigated experimentally. The variation in the balance of the mean and turbulent kinetic energy in the recovery region was examined. In the early stage of the recovery region, the advection of the mean flow and the work done by the Reynolds stress play a significant role within the whole layer, also the turbulent energy production exhibits noticeable distribution that shows peak value around y/δ=0.3. Although the turbulent energy production is mainly due to the Reynolds shear stress, the production due to the Reynolds normal stress of x^*-component cannot be ignored and contributes as a negative production. The balance of turbulent kinetic energy exhibit significant distributions, those resembling a mixing layer within most of the layer and that of a wall shear layer developing in the inner region after the reattachment point.
日本流体力学会の論文
2004-08-09