When discussing research in physics and in science more generally, it is common to ascribe
equal importance to the three components of the scientific trinity: theoretical, experimental …

The neutrally stable atmospheric surface layer is used as a physical model of a very high
Reynolds number, canonical turbulent boundary layer. Challenges and limitations with this …

This paper presents an analysis and numerical study of the relations between the small-
scale velocity and scalar fields in fully developed isotropic turbulence with random forcing of …

In situ heliospheric measurements allow us to resolve fluctuations as a function of frequency.
A crucial point is to describe the power spectral density as a function of the wavenumber, in …

20/0t+ uV0 kV²0+ fo=(3.1) which governs the evolution of the fluctuation of a passive
scalar→(of mean ()) in an incompressible fluid velocity field u that satisfies the Navier-Stokes …

The turbulent flow originating downstream of the Kelvin-Helmholtz instability in a mixing
layer has great relevance in many applications, ranging from atmospheric physics to …

Calculation of eddy covariances in the atmospheric surface layer (ASL) requires separating
the instantaneous signal into mean and fluctuating components. Since the ASL is not …

Passive scalar and velocity fluctuations in homogeneous isotropic turbulence with or without
mean scalar gradient are studied by using high-resolution direct numerical simulation …

The influence of uniaxial small-scale anisotropy on the stability of the scaling regimes and
on the anomalous scaling of the structure functions of a passive scalar advected by a …

In wall-bounded turbulent flows, both velocity and scalar fluctuations exhibit inhomogeneity
and anisotropy. This study investigates the statistical properties of the small-scale scalar …