Vincent Bouillaut

Vincent Bouillaut
Atomic Energy and Alternative Energies Commission | CEA · Institut rayonnement matière de Saclay (IRAMIS)

Doctor of Philosophy

About

11
Publications
1,832
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71
Citations
Additional affiliations
March 2018 - present
Atomic Energy and Alternative Energies Commission
Position
  • PhD Student

Publications

Publications (11)
Article
Three-dimensional convection driven by internal heat sources and sinks (CISS) leads to experimental and numerical scaling laws compatible with a mixing-length—or ‘ultimate’—scaling regime N u ∼ R a . However, asymptotic analytic solutions and idealized two-dimensional simulations have shown that laminar flow solutions can transport heat even more e...
Preprint
Full-text available
The competition between turbulent convection and global rotation in planetary and stellar interiors governs the transport of heat and tracers, as well as magnetic-field generation. These objects operate in dynamical regimes ranging from weakly rotating convection to the `geostrophic turbulence' regime of rapidly rotating convection. However, the la...
Thesis
We study rapidly rotating convection forced by a radiative heat source. Radiative heating is relevant to stellar and planetary interiors, where the main challenge is to quantify the transport of heat and tracers by turbulent convection, including the crucial impact of global rotation. Rotating convection can operate in various regimes ranging from...
Article
The competition between turbulent convection and global rotation in planetary and stellar interiors governs the transport of heat and tracers, as well as magnetic field generation. These objects operate in dynamical regimes ranging from weakly rotating convection to the “geostrophic turbulence” regime of rapidly rotating convection. However, the la...
Preprint
Thermal convection driven by internal heat sources and sinks was recently shown experimentally to exhibit the mixing-length, or "ultimate", scaling-regime: the Nusselt number $Nu$ (dimensionless heat flux) increases as the square-root of the Rayleigh-number $Ra$ (dimensionless internal temperature difference). While for standard Rayleigh-B\'enard c...
Preprint
We report on the transition between two regimes of heat transport in a radiatively driven convection experiment, where a fluid gets heated up within a tunable heating length $\ell$ in the vicinity of the bottom of the tank. The first regime is similar to the one observed in standard Rayleigh-B\'enard experiments, the Nusselt number $Nu$ being relat...
Article
On the role of the Prandtl number in convection driven by heat sources and sinks - Volume 900 - Benjamin Miquel, Vincent Bouillaut, Sébastien Aumaître, Basile Gallet
Preprint
We report on a numerical study of turbulent convection driven by a combination of internal heat sources and sinks. Motivated by a recent experimental realisation (Lepot et al. 2018), we focus on the situation where the cooling is uniform, while the internal heating is localised near the bottom boundary, over approximately one tenth of the domain he...
Article
Thermal convection driven by internal heat sources and sinks was recently shown experimentally to exhibit the mixing-length or “ultimate” scaling-regime: The Nusselt number Nu (dimensionless heat flux) increases as the square-root of the Rayleigh-number Ra (dimensionless internal temperature difference). While for standard Rayleigh-Bénard convectio...
Article
We report on the transition between two regimes of heat transport in a radiatively driven convection experiment, where a fluid gets heated up within a tunable heating length $\ell$ in the vicinity of the bottom of the tank. The first regime is similar to that observed in standard Rayleigh–Bénard experiments, the Nusselt number $Nu$ being related to...
Technical Report
Full-text available
Air quality is a major concern for people living in cities. Pollutant exposure is dangerous, harmful and associated with huge costs in terms of public health. Ground vehicles are an important source of fine and ultrafine particle emissions in urban areas. Reducing exposure to such particles requires an improvement of knowledge of their dynamics whe...

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