4 papers · 1 filter
How two-way coupling modifies the multiscale preferential sweeping mechanism
Josin Tom, Maurizio Carbone, Andrew D. Bragg
For one-way coupled (1WC) flows, Tom & Bragg (J. Fluid Mech., 871, pp. 244-270, 2019) advanced the analysis of Maxey (J. Fluid Mech., 174, pp. 441-465, 1987), which applied to weak…
Exploring the turbulent velocity gradients at different scales from the perspective of the strain-rate eigenframe
Josin Tom, Maurizio Carbone, Andrew D Bragg
Expressing the evolution equations for the filtered velocity gradient tensor (FVGT) in the strain-rate eigenframe provides an insightful way to disentangle and understand various p…
Is vortex stretching the main cause of the turbulent energy cascade?
Maurizio Carbone, Andrew D. Bragg
In three dimensional turbulence there is on average a cascade of kinetic energy from the largest to the smallest scales of the flow. While the dominant idea is that the cascade occ…
Multiscale fluid--particle thermal interaction in isotropic turbulence
Maurizio Carbone, Andrew D. Bragg, Michele Iovieno
We use direct numerical simulations to investigate the interaction between the temperature field of a fluid and the temperature of small particles suspended in the flow, employing…