147 citations · 1k across the 47 of their papers we have counts for
47 papers
Impact of alignments between fluctuating and mean density gradients on the scale-dependent energetics of stably stratified turbulence
Soumak Bhattacharjee, Stephen M. de Bruyn Kops, Andrew D. Bragg
Non-trivial alignments between vorticity and the strain-rate tensor play an important role in the evolution of velocity gradients and the energy cascade in isotropic turbulence. He…
Asymptotic analysis of mixing in stratified turbulent flows, and the conditions for an inertial sub-range
Andrew D. Bragg, Stephen M. de Bruyn Kops
In an important study, Maffioli et al. (J. Fluid Mech., Vol. 794 , 2016) used a scaling analysis to predict that in the weakly stratified flow regime ( is the hori…
Investigating the parametric dependence of the impact of two-way coupling on inertial particle settling in turbulence
Soumak Bhattacharjee, Josin Tom, Maurizio Carbone +1
Tom et al.\ (J.\ Fluid Mech.\ 947, A7, 2022) investigated the impact of two-way coupling (2WC) on particle settling in turbulence. For the limited parameter choices explored, it wa…
Understanding the effect of Prandtl number on momentum and scalar mixing rates in neutral and stably stratified flows using gradient field dynamics
Andrew D. Bragg, Stephen M. de Bruyn Kops
Recently, direct numerical simulations (DNS) of stably stratified turbulence have shown that as the Prandtl number () is increased from 1 to 7, the mean turbulent potential ene…
Comparing phase-space and phenomenological modeling approaches for Lagrangian particles settling in a turbulent boundary layer
Andrew P. Grace, David H. Richter, Andrew D. Bragg
Under the right circumstances, inertial particles (such as sand or dust) settling through the atmospheric boundary layer can experience a net enhancement in their average settling…
Fate of bubble clusters rising in a quiescent liquid
Tian Ma, Hendrik Hessenkemper, Dirk Luca +1
We use experiments to study the evolution of bubble clusters in a swarm of freely rising, deformable bubbles. A new machine learning-aided algorithm allows us to identify and track…