Abstract
Using velocity data obtained in the atmospheric surface layer, we examine Kolmogorov’s refined hypotheses. In particular, we focus on the properties of the stochastic variable V=Δu(r)/(r, where Δu(r) is the velocity increment over a distance r, and is the dissipation rate averaged over linear intervals of size r. We show that V has an approximately universal probability density function for r in the inertial range and discuss its properties; we also examine the properties of V for r outside the inertial range.
- Received 26 May 1992
DOI:https://doi.org/10.1103/PhysRevLett.69.1178
©1992 American Physical Society