Chemo-hydrodynamic patterns and instabilities

A De Wit - Annual Review of Fluid Mechanics, 2020 - annualreviews.org
By modifying a physical property of a solution like its density or viscosity, chemical reactions
can modify and even trigger convective flows. These flows in turn affect the spatiotemporal …

[HTML][HTML] Hydrodynamically-enhanced transfer of dense non-aqueous phase liquids into an aqueous reservoir

N Valletti, MA Budroni, P Albanese, N Marchettini… - Water Research, 2023 - Elsevier
The use of surfactants represents a viable strategy to boost the removal yield of Dense Non-
Aqueous Phase Liquids (DNAPLs) from groundwater and to shorten the operational timing …

Dynamics of CO2 Density‐Driven Flow in Carbonate Aquifers: Effects of Dispersion and Geochemistry

H Erfani, M Babaei, V Niasar - Water Resources Research, 2021 - Wiley Online Library
The dissolution of carbon‐dioxide (CO2) in deep saline aquifers is an important trapping
mechanism in carbon storage. This process is triggered by unstable high‐density CO2 front …

Reactive Precipitation during Overlaying CO2 Dissolution into Brine: the Role of Porous Structure

S Zheng, K Xu, D Zhang - Advances in Water Resources, 2024 - Elsevier
After sequestration of CO 2 into subsurface saline aquifer, CO 2 cap forms at the top of a
stratum. As overlaying CO 2 dissolves into brine, precipitation reactions between CO 2 and …

Reactive convective dissolution with differential diffusivities: Nonlinear simulations of onset times and asymptotic fluxes

M Jotkar, L Rongy, A De Wit - Physical Review Fluids, 2020 - APS
Convection can develop upon dissolution of a given species A in a host phase when
dissolution leads to a buoyantly unstable density stratification. If A reacts with a solute B …

Effect of variable solubility on reactive dissolution in partially miscible systems

S Kabbadj, L Rongy, A De Wit - Physical Review E, 2023 - APS
When two partially miscible systems are put in contact, one phase, A, can dissolve into the
other one with a given solubility. Chemical reactions in the host phase can impact this …

Chemically-driven convective dissolution

M Jotkar, L Rongy, A De Wit - Physical Chemistry Chemical Physics, 2019 - pubs.rsc.org
When a solute A dissolves in a host phase with a given solubility, the resulting density
stratification is stable towards convection if the density profile increases monotonically along …

Control of chemically driven convective dissolution by differential diffusion effects

M Jotkar, A De Wit, L Rongy - Physical Review Fluids, 2021 - APS
Chemically driven convective dissolution can occur upon reaction of a dissolving species in
a host phase when the chemical reaction destabilizes an otherwise stable density …

Diffusivity ratio effect on the onset of the buoyancy-driven instability of an A+ B→ C chemical reaction system in a Hele-Shaw cell: Numerical simulations and …

MC Kim, SSS Cardoso - Physics of Fluids, 2019 - pubs.aip.org
The effect of different diffusivities on the evolution of buoyancy-driven instability in a reactive-
diffusion system is analyzed. For an instantaneous A+ B→ C chemical reaction in a Hele …

Pore-scale study on porous media flows with chemical reaction using lattice Boltzmann method

T Lei - 2021 - discovery.ucl.ac.uk
Porous media flows with chemical reaction are common in nature and widely exist in many
scientific and industrial applications. However, due to the complexity of coupled …