Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2005-10-04
Physica D, 218, 77 (2006)
Physics
Condensed Matter
Statistical Mechanics
13 pages, 3 figures, Extended version, Published
Scientific paper
10.1016/j.physd.2006.04.011
The phenomenology of velocity statistics in turbulent flows, up to now, relates to different models dealing with either signed or unsigned longitudinal velocity increments, with either inertial or dissipative fluctuations. In this paper, we are concerned with the complete probability density function (PDF) of signed longitudinal increments at all scales. First, we focus on the symmetric part of the PDFs, taking into account the observed departure from scale invariance induced by dissipation effects. The analysis is then extended to the asymmetric part of the PDFs, with the specific goal to predict the skewness of the velocity derivatives. It opens the route to the complete description of all measurable quantities, for any Reynolds number, and various experimental conditions. This description is based on a single universal parameter function D(h) and a universal constant R*.
Arneodo Alain
Castaing Bernard
Chevillard Laurent
Lévêque Emmanuel
No associations
LandOfFree
Unified Multifractal Description of Velocity Increments Statistics in Turbulence: Intermittency and Skewness does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Unified Multifractal Description of Velocity Increments Statistics in Turbulence: Intermittency and Skewness, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unified Multifractal Description of Velocity Increments Statistics in Turbulence: Intermittency and Skewness will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-83900