Cascades and transitions in turbulent flows
A Alexakis, L Biferale - Physics Reports, 2018 - Elsevier
Turbulent flows are characterized by the non-linear cascades of energy and other inviscid
invariants across a huge range of scales, from where they are injected to where they are …
invariants across a huge range of scales, from where they are injected to where they are …
Frontiers of chaotic advection
This work reviews the present position of and surveys future perspectives in the physics of
chaotic advection: the field that emerged three decades ago at the intersection of fluid …
chaotic advection: the field that emerged three decades ago at the intersection of fluid …
Turbulent mixing: A perspective
KR Sreenivasan - Proceedings of the National Academy of …, 2019 - National Acad Sciences
Mixing of initially distinct substances plays an important role in our daily lives as well as in
ecological and technological worlds. From the continuum point of view, which we adopt …
ecological and technological worlds. From the continuum point of view, which we adopt …
Mixing versus stirring
E Villermaux - Annual Review of Fluid Mechanics, 2019 - annualreviews.org
Mixing is the operation by which a system evolves under stirring from one state of simplicity—
the initial segregation of the constituents—to another state of simplicity—their complete …
the initial segregation of the constituents—to another state of simplicity—their complete …
Generalized Lagrangian coherent structures
The notion of a Lagrangian Coherent Structure (LCS) is by now well established as a way to
capture transient coherent transport dynamics in unsteady and aperiodic fluid flows that are …
capture transient coherent transport dynamics in unsteady and aperiodic fluid flows that are …
Almost-sure enhanced dissipation and uniform-in-diffusivity exponential mixing for advection–diffusion by stochastic Navier–Stokes
We study the mixing and dissipation properties of the advection–diffusion equation with
diffusivity 0< κ ≪ 1 0< κ≪ 1 and advection by a class of random velocity fields on T^ d T d …
diffusivity 0< κ ≪ 1 0< κ≪ 1 and advection by a class of random velocity fields on T^ d T d …
The Batchelor spectrum of passive scalar turbulence in stochastic fluid mechanics at fixed Reynolds number
In 1959 Batchelor predicted that the stationary statistics of passive scalars advected in fluids
with small diffusivity k should display a power spectrum along an inertial range contained in …
with small diffusivity k should display a power spectrum along an inertial range contained in …
Universal mixers in all dimensions
We construct universal mixers, incompressible flows that mix arbitrarily well general
solutions to the corresponding transport equation, in all dimensions. This mixing is …
solutions to the corresponding transport equation, in all dimensions. This mixing is …
Optimal mixing in two-dimensional plane Poiseuille flow at finite Péclet number
We consider the nonlinear optimisation of the mixing of a passive scalar, initially arranged in
two layers, in a two-dimensional plane Poiseuille flow at finite Reynolds and Péclet …
two layers, in a two-dimensional plane Poiseuille flow at finite Reynolds and Péclet …
Mixing and un-mixing by incompressible flows
Mixing and un-mixing by incompressible flows Page 1 DOI 10.4171/JEMS/709 J. Eur. Math.
Soc. 19, 1911–1948 c European Mathematical Society 2017 Yao Yao · Andrej Zlatoš Mixing …
Soc. 19, 1911–1948 c European Mathematical Society 2017 Yao Yao · Andrej Zlatoš Mixing …