论文标题
浮力驱动的湍流边界层中的抗发质涡流
Anti-hairpin vortices in the buoyancy-driven turbulent boundary layer
论文作者
论文摘要
在这里，我们显示了发夹涡流指向流的上游方向而不是下游，并且发现这种特征是湍流浮力驱动的边界层的内在行为。我们发现连贯的涡流横跨高速条纹，而不是低速条纹。此外，切向雷诺的象限剪切应力主导了第一和第三象限，而不是第二和第四象限。这些发现可能有助于提高我们对浮力模型中浮力驱动的流量和浮力效应的理解。
Here we show the hairpin vortices point the upstream direction of flow instead of downstream, and this characteristic is found intrinsic behavior for turbulent buoyancy-driven boundary layer. We uncover the coherent vortices straddle high-speed streak instead of low-speed streak; moreover, the quadrant of the tangential Reynolds shear stresses dominates the first and third quadrant instead of the second and fourth one. These findings may help to improve our understanding of buoyancy-driven flow and buoyancy effects in turbulent models.
