The mesochronic velocity is the average of the velocity field along trajectories generated by
the same velocity field over a time interval of finite duration. In this paper we classify initial …

Because in the Lagrangian frame the time scale separation has a stronger Reynolds
number dependence than the length scale case in the Eulerian frame, it is more difficult to …

The model of an elliptic vortex evolving in a periodically strained background flow is studied
in order to establish the possible unbounded regimes. Depending on the parameters of the …

In this work, flow through synthetic arrangements of contacting spheres is studied as a
model problem for porous media and packed bed type flows. Direct numerical simulations …

We develop a methodology to identify finite-time Lagrangian structures from data and
models using an extension of the Koopman operator-theoretic methods developed for …

Lagrangian methods are a common tool in physical oceanography. Due to the quasi-
Lagrangian characteristics of fioating marine litter (FML) and the chemical substances …

Проведено исследование взаимодействия мезомасштабных и субмезомасштабных
вихрей в глубоководной Курильской котловине Охотского моря. Анализ многолетнего …

Topological chaos has emerged as a powerful tool to investigate fluid mixing. While this
theory can guarantee a lower bound on the stretching rate of certain material lines, it does …

We investigate the structure of surface lateral mixing in the Lofoten area in the Norwegian
Sea using surface velocity field derived from a 1/12 o reanalysis data. We compute a …

A parallel particle tracking model, which employs the local exact integration method to
achieve high accuracy, has been developed and embedded in an unstructured-grid coastal …