Direct numerical simulations of bubble-mediated gas transfer and dissolution in quiescent and turbulent flows

PK Farsoiya, Q Magdelaine, A Antkowiak… - Journal of Fluid …, 2023 - cambridge.org
We perform direct numerical simulations of a gas bubble dissolving in a surrounding liquid.
The bubble volume is reduced due to dissolution of the gas, with the numerical …

Bubble-mediated transfer of dilute gas in turbulence

PK Farsoiya, S Popinet, L Deike - Journal of Fluid Mechanics, 2021 - cambridge.org
Bubble-mediated gas exchange in turbulent flow is critical in bubble column chemical
reactors as well as for ocean–atmosphere gas exchange related to air entrained by breaking …

Vortex ring connection to a free surface

SJ Terrington, K Hourigan… - Journal of Fluid …, 2022 - cambridge.org
We perform numerical simulations of the interaction between a vortex ring and a free
surface, and provide a new interpretation of the mechanism by which the vortex ring …

Direct numerical simulation of turbulent mass transfer at the surface of an open channel flow

M Pinelli, H Herlina, JG Wissink… - Journal of Fluid …, 2022 - cambridge.org
We present direct numerical simulation results of turbulent open channel flow at bulk
Reynolds numbers up to 12 000, coupled with (passive) scalar transport at Schmidt numbers …

Experimental study on characteristics of turbulence and sediment transport produced by wind-induced water waves

M Sanjou, Y Sugihara - Physics of Fluids, 2023 - pubs.aip.org
Many researchers and engineers have shown great interest in mass transfer processes
produced by wind-induced waves. Such waves contribute significantly to the transfer of …

Local gas transfer rate through the free surface in spatially accelerated open-channel turbulence

M Sanjou - Physics of Fluids, 2020 - pubs.aip.org
It is important to determine the transport mechanisms of dissolved gases through free
surfaces in open channels. Even though many physical and phenomenological models …

[HTML][HTML] Measurement of small-scale surface velocity and turbulent kinetic energy dissipation rates using infrared imaging

S Metoyer, M Barzegar, D Bogucki… - … of Atmospheric and …, 2021 - journals.ametsoc.org
Short-range infrared (IR) observations of ocean surface reveal complicated spatially varying
and evolving structures. Here we present an approach to use spatially correlated time series …

Experimental study of three-dimensional turbulence under a free surface

T Jamin, M Berhanu, E Falcon - arXiv preprint arXiv:2401.17871, 2024 - arxiv.org
In many environmental flows, an air-water free surface interacts with a turbulent flow in the
water phase. To reproduce this situation, we propose an original experimental setup, which …

[PDF][PDF] Turbulent one-dimensional interfacial scalar transport: statistical random square waves solution

HE Schulz, FAL Lavín - Journal of Applied Fluid Mechanics, 2023 - repositorio.usp.br
In this study the mass transport through free turbulent liquid surfaces, or gas/liquid
interfaces, is considered. The main direction of mass transfer is perpendicular to the …

Effect of free-slip and no-slip boundaries on isotropic turbulence

JG Wissink, H Herlina - Direct and Large Eddy Simulation XII, 2020 - Springer
The effect of free-slip and no-slip boundaries on isotropic turbulence is studied by direct
numerical simulation (DNS). In each simulation, isotropic turbulence of fixed intensity was …