Frontiers of chaotic advection

H Aref, JR Blake, M Budišić, SSS Cardoso… - Reviews of Modern …, 2017 - APS
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 …

Fluid–solid reaction in porous media as a chaotic restart process

T Aquino, T Le Borgne, J Heyman - Physical Review Letters, 2023 - APS
Chemical and biological reactions at fluid-solid interfaces are central to a broad range of
porous material applications and research. Pore-scale solute transport limitations can …

Chaotic advection for thermal mixing

Y Le Guer, K El Omari - Advances in applied mechanics, 2012 - Elsevier
Mixing at macroscopic scales is very common in various industrial applications. Industrial
processes can bring into play highly viscous or shear-sensitive fluids, and the mixing …

Numerical algorithms and simulations of boundary dynamic control for optimal mixing in unsteady Stokes flows

X Zheng, W Hu, J Wu - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
This work develops an efficient and accurate optimization algorithm to study the optimal
mixing problem driven by boundary control of unsteady Stokes flows, based on the …

On the local concentration probability density function of solutes reacting upon mixing

A Bellin, G Severino, A Fiori - Water Resources Research, 2011 - Wiley Online Library
The probability density function (pdf) of solute concentration is a useful tool for modeling
transport of contaminants in heterogeneous aquifers that is increasingly used in risk …

Boundary Control for Optimal Mixing via Navier--Stokes Flows

W Hu, J Wu - SIAM Journal on Control and Optimization, 2018 - SIAM
We discuss the problem of optimal mixing of an inhomogeneous distribution of a scalar field
θ via an active control of the flow velocity v, governed by the incompressible Navier--Stokes …

Moving walls accelerate mixing

JL Thiffeault, E Gouillart, O Dauchot - … E—Statistical, Nonlinear, and Soft Matter …, 2011 - APS
Mixing in viscous fluids is challenging, but chaotic advection in principle allows efficient
mixing. In the best possible scenario, the decay rate of the concentration profile of a passive …

Analysis of a hybridizable discontinuous Galerkin scheme for the tangential control of the Stokes system

W Gong, W Hu, M Mateos, JR Singler… - … and Numerical Analysis, 2020 - esaim-m2an.org
We consider an unconstrained tangential Dirichlet boundary control problem for the Stokes
equations with an L 2 penalty on the boundary control. The contribution of this paper is …

[HTML][HTML] Enhancement of laminar mixing by an anchor impeller with rotationally reciprocating motion

Y Komoda - AIP Advances, 2022 - pubs.aip.org
Rotationally reciprocating mixing, in which a plate impeller slowly rotates back and forth for
only half a rotation, shows excellent fluid mixing performance at Re> 40. On the other hand …

Boundary control for optimal mixing by Stokes flows

W Hu - Applied Mathematics & Optimization, 2018 - Springer
We discuss the optimal boundary control problem for mixing an inhomogeneous distribution
of a passive scalar field in an unsteady Stokes flow. The problem is motivated by mixing the …