Numerical models allow us to gather new information on many natural processes that was
not possible to obtain using only conventional field, theoretical and experimental …

Mixing under low to moderate Reynolds numbers is investigated experimentally in a stirred
tank. An acid-base neutralization reaction and a pH indicator are used to reveal the …

Fluid mixing is a successful application of chaos. Theory anticipates the coexistence of order
and disorder—symmetry and chaos—as well as self-similarity and multifractality arising from …

Most previous studies of mixing in deterministic flows have focused on time-periodic or
spatially-periodic flows. In contrast, mixing processes in aperiodic flows have been …

The statistics of stretching and stirring in time‐periodic chaotic flows is studied numerically
by following the evolution of stretching of O (105) points. The ratio between stretchings …

We define a local Lyapunov exponent in chaotic systems so that the Lyapunov exponent
along a trajectory is the integral over the local exponent, thus extending previously used …

Structures of magma mixing from three different lava flows have been analyzed and the
degree of mingling has been quantified by measuring the contact perimeter between …

The role of chaotic orbits in the determination of power spectra of passive scalars Page 1 The
role of chaotic orbits in the determination of power spectra of passive scalars Thomas M …

According to theorems of Shnirelman and followers, in the semiclassical limit the quantum
wave functions of classically ergodic systems tend to the microcanonical density on the …

We study the probability densities of finite-time or local Lyapunov exponents in low-
dimensional chaotic systems. While the multifractal formalism describes how these densities …