Richardson's pair diffusion and the stagnation point structure of turbulence.

@article{Dvila2003RichardsonsPD,
  title={Richardson's pair diffusion and the stagnation point structure of turbulence.},
  author={Juan D{\'a}vila and J. Christos Vassilicos},
  journal={Physical review letters},
  year={2003},
  volume={91 14},
  pages={144501}
}
DNS and laboratory experiments show that the spatial distribution of straining stagnation points in homogeneous isotropic 3D turbulence has a fractal structure with dimension D(s)=2. In kinematic simulations the exponent gamma in Richardson's law and the fractal dimension D(s) are related by gamma=6/D(s). The Richardson constant is found to be an increasing… CONTINUE READING