147 citations · 1k across the 47 of their papers we have counts for
6 papers · 1 filter
Particle-Pair Relative Velocity Measurement in High-Reynolds-Number Homogeneous and Isotropic Turbulence Using 4-Frame Particle Tracking Velocimetry
Zhongwang Dou, Peter J. Ireland, Andrew D. Bragg +3
The radial relative velocity between particles suspended in turbulent flow plays a critical role in droplet collision and growth. We present a simple and accurate approach to RV me…
Do fluid particles separate exponentially in the dissipation range?
Rohit Dhariwal, Andrew D. Bragg
In this paper we consider how the statistical moments of the separation between two fluid particles grow with time when their separation lies in the dissipation range of turbulence…
Effects of Reynolds Number and Stokes Number on Particle-pair Relative Velocity in Isotropic Turbulence: A Systematic Experimental Study
Zhongwang Dou, Andrew D. Bragg, Adam L. Hammond +3
The effects of Reynolds number and Stokes number on particle-pair relative velocity (RV) were investigated systematically using a recently developed planar four-frame particle trac…
Irreversibility-inversions in 2 dimensional turbulence
Andrew D Bragg, Filippo De Lillo, Guido Boffetta
In this paper we consider a recent theoretical prediction (Bragg \emph{et al.}, Phys. Fluids \textbf{28}, 013305 (2016)) that for inertial particles in 2D turbulence, the nature of…
Small-scale dynamics of settling, bidisperse particles in turbulence
Rohit Dhariwal, Andrew D. Bragg
We use Direct Numerical Simulations (DNS) to investigate the dynamics of settling, bidisperse particles in isotropic turbulence. In agreement with previous studies, we find that wi…
Is the kinetic equation for turbulent gas-particle flows ill-posed?
M. W. Reeks, D. C. Swailes, A. D. Bragg
This paper is about well-posedness and realizability of the kinetic equation for gas-particle flows and its relationship to the Generalized Langevin Model (GLM) PDF equation. Previ…