▪ Abstract Passive scalar behavior is important in turbulent mixing, combustion, and pollution
and provides impetus for the study of turbulence itself. The conceptual framework of the …

The Lagrangian description of turbulence is characterized by a unique conceptual simplicity
and by an immediate connection with the physics of dispersion and mixing. In this article, we …

The average settling velocity in homogeneous turbulence of a small rigid spherical particle,
subject to a Stokes drag force, has been shown to differ from that in still fluid owing to a bias …

An artificial neural network (ANN) is used to establish the relation between the resolved-
scale flow field and the subgrid-scale (SGS) stress tensor, to develop a new SGS model for …

Because of the importance of multiphase flows in a wide variety of industries, including
power, petroleum, and numerous processing industries, an understanding of the behavior …

The high order conservative finite difference scheme of Morinishi et al.[Y. Morinishi, OV
Vasilyev, T. Ogi, Fully conservative finite difference scheme in cylindrical coordinates for …

The effect of turbulence on particle concentration fields and the modification of turbulence by
particles has been investigated using direct numerical simulations of isotropic turbulence …

Soaring birds often rely on ascending thermal plumes (thermals) in the atmosphere as they
search for prey or migrate across large distances,,–. The landscape of convective currents is …

We use silicon strip detectors (originally developed for the CLEO III high-energy particle
physics experiment) to measure fluid particle trajectories in turbulence with temporal …

The photogrammetric determination of three-dimensional particle coordinates from a 3-
camera system is described in Part I. In Part II we describe a fully automated tracking …