Identification of tubular vortices in turbulence
Identification of tubular vortices in turbulence
复制标题
DOI：
10.1143/jpsj.66.1331
复制
发表时间：
1997-05-01
影响因子：
1.7
通讯作者：
Kida, S
中科院分区：
文献类型：
--
作者：
Miura, H;Kida, S
提出了一种新的湍流管状涡的轴线提取方法。用数值方法求出了与平流加速相关的局部最小压力的分段轨迹。将它应用于均匀各向同性湍流，以证明绕这些轴实际上存在旋转运动。在识别管状涡方面，本方法优于常用的几种典型方法。
A new method is proposed to extract the axes of tubular vortices in turbulence. Loci of sectional local minimum of the pressure associated with the advection acceleration are traced numerically. It is applied to a homogeneous isotropic turbulence to demonstrate that swirling motions actually exist around these axes. The present method is shown to he superior to several typical ones commonly used in identifying tubular vortices.