TY - A2的杨紫琼,关盟——刘超群解释道盟——陈、林盟- Lu, Ping PY - 2011 DA - 2011/02/14 TI -新发现为流过渡后期由高阶DNS边界层SP - 721487六世- 2011 AB -本文是总结新发现的DNS的晚期流动边界层过渡。广泛传播概念“涡破裂”发现理论上是不可能的,在实践中从未发生过。发现环状涡在流场存在的唯一形式。环状涡的形成是两对之间的交互的结果反向旋转中小学回水区漩涡。第一个亥姆霍兹涡守恒定律后,主涡管卷起,拉伸由于速度梯度。为了保持涡度守恒,必须形成一座桥来连接两个Λ-vortex腿。最后的发展作为一种新的环的桥梁。这一过程不断形成多个环形结构。u型漩涡不新但现有相干涡旋结构。实际上,u型涡,这是第三个层次漩涡,作为第二个颈部提供多个环涡度。 The small vortices can be found on the bottom of the boundary layer near the wall surface. It is believed that the small vortices, and thus turbulence, are generated by the interaction of positive spikes and other higher level vortices with the solid wall. The mechanism of formation of secondary vortex, second sweep, positive spike, high shear distribution, downdraft and updraft motion, and multiple ring-circle overlapping is also investigated. SN - 1687-5591 UR - https://doi.org/10.1155/2011/721487 DO - 10.1155/2011/721487 JF - Modelling and Simulation in Engineering PB - Hindawi Publishing Corporation KW - ER -