Insight on turbulent flows from Lagrangian tetrads

摘要: Abstract The insufficient understanding of the generation small scales in turbulent flows results serious impediment when trying to describe numerous physical problems, natural or applied significance, and therefore, calls for new approaches. Here, we discuss insight that can be gained by following motion a few points flow. This approach, which has shown its power context problem dispersion passive scalar transported turbulence, led into some intriguing phenomena observed flows, such as alignment vorticity with eigenvectors rate strain tensor. Recent work focused on four points, forming initially regular tetrad size r 0 . In particular, modeling perspective inspired approach will discussed here.