Showing 2023 · physics.flu-dynShow all

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physics.flu-dyn2023★ 11 cited

Dynamic stabilization of a hydrogen premixed flame in a narrow channel

Faizan Habib Vance, Arne Scholtissek, Philip de Goey +2

Combustion of hydrogen can help in reducing carbon-based emissions but it also poses unique challenges related to the high flame speed and Lewis number effects of the hydrogen flam…

physics.flu-dyn2023★ 4 cited

Investigating the magnitude and temporal localization of inertial particle mixing in turbulent channel flows

D. Perrone, J. G. M Kuerten, L. Ridolfi +1

Mixing of inertial point particles in a turbulent channel flow at Reτ = 950 is investigated by means of direct numerical simulations. We consider inertial particles, at varying Sto…

physics.flu-dyn2023★ 7 cited

Data-driven spectral turbulence modeling for Rayleigh-Bénard convection

Sagy Ephrati, Paolo Cifani, Bernard Geurts

A data-driven turbulence model for coarse-grained numerical simulations of two-dimensional Rayleigh-Bénard convection is proposed. The model starts from high-fidelity data and is b…

physics.flu-dyn2023★ 12 cited

Robust wall modes and their interplay with bulk turbulence in confined rotating Rayleigh-Bénard convection

Xander M. de Wit, Wouter J. M. Boot, Matteo Madonia +2

In confined rotating convection, a strong zonal flow can develop close to the side wall with a modal structure that precesses anti-cyclonically (counter to the applied rotation) al…

physics.flu-dyn2023★ 8 cited

Resonance behavior of a compliant piezo-driven inkjet channel with an entrained microbubble

Hans Reinten, Yogesh Jethani, Arjan Fraters +4

Microbubbles entrained in a piezo-driven drop-on-demand (DOD) printhead disturb the acoustics of the microfluidic ink channel and thereby the jetting behavior. Here, the resonance…

physics.flu-dyn2023★ 27 cited

The ignition of fine iron particles in the Knudsen transition regime

Joel Jean-Philyppe, Aki Fujinawa, Jeffrey M. Bergthorson +1

A theoretical model is considered to predict the minimum ambient gas temperature at which fine iron particles can undergo thermal runaway--the ignition temperature. The model accou…