| Issue |
Europhys. Lett.
Volume 41, Number 2, January II 1998
|
|
|---|---|---|
| Page(s) | 153 - 158 | |
| Section | Classical areas of phenomenology | |
| DOI | https://doi.org/10.1209/epl/i1998-00124-7 | |
| Published online | 01 September 2002 | |
A note on three-point statistics of velocity increments in turbulence
1
Institut für Theoretische Physik,
Universität Stuttgart, 70550 Stuttgart, Germany
2
Experimentalphysik II, Universität Bayreuth, 95447 Bayreuth, Germany
Received:
14
March
1997
Accepted:
20
November
1997
We consider the joint probability functions 
for the velocity increments v(L) across scale L of a turbulent field
measured
in the helium gas jet experiment of Chabaud et al.
(Chabaud B. et al., Phys. Rev. Lett., 73 (1994) 3227). We show that
the conditional probability distribution 
,
,
becomes independent of v1 and L1 provided 
, where
Lmar
is comparable to the crossover scale from the inertial to the viscous
subrange. This indicates that the N-point probability distributions
may be considered as a stochastic process
exhibiting Markovian properties.
PACS: 47.27.Eq – Turbulence simulation and modeling / 02.50.Fz – Stochastic analysis / 05.40.+j – Fluctuation phenomena, random processes, and Brownian motion
© EDP Sciences, 1998
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