Effect of preferential concentration on turbulent collision rates

By W. Reade, Lance R. Collins. 2000

304 citations recorded by the source corpus.

Subfields: Computational Mechanics, Earth-Surface Processes, Ocean Engineering

View Paper: https://www.semanticscholar.org/paper/ed26f8724782b70de71d7f782b13c6dffd94d7b8

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In Computational Mechanics

In Earth-Surface Processes

In Ocean Engineering

Citations in the corpus

Exact regularized point particle method for multiphase flows in the two-way coupling regime (2014, background): “In these conditions the Stokes number Stη = τp/τη controls the dynamics of the disperse phase in terms of its preferential spatial accumulation, either small scale clustering in homogeneous flows [42, 28, 4, 29, 37] or turbophoresis in wall bounded flows [34, 25].”
Sling Effect in Collisions of Water Droplets in Turbulent Clouds (2006, background): “It has been identified long ago (see Maxey 1987; Squires and Eaton 1991; Sundaram and Collins 1997; Reade and Collins 2000; Kostinski Shaw 2001; Jaczewski and Malinowski 2005; McFarquhar 2004; Franklin et al 2005; Grits et al 2006 and the references therein).”
Partitioning of particle velocities in gas–solid turbulent flows into a continuous field and a spatially uncorrelated random distribution: theoretical formalism and numerical study (2005, methodology): “If, for example, a large number of particles are clustered into thin structures, then there will be strong variations in gpp(r) for small r (e.g. see Reade & Collins 2000).”
Filtered particle tracking in isotropic turbulence and stochastic modeling of subgrid-scale dispersion (2009, background): “…particle deposition on walls (Uijttewaal & Oliemans 1996); it leads to an increase of interparticle collision rates and, possibly, coalescence in a dense two-phase flow regime (Reade & Collins 2000); it influences the particle settling velocity in an external (gravity) field (Wang & Maxey 1993 ).”
PARTICLE-TURBULENCE INTERACTIONS IN ATMOSPHERIC CLOUDS (2003, methodology): “…the majority of direct numerical simulation studies have not accounted for gravity and have focused on Stokes numbers close to unity, where preferential concentration is observed to be most prominent (e.g., Hogan et al. 1999, Reade & Collins 2000, Sundaram & Collins 1997, Wang et al. 2000).”
Experimental and numerical investigation of inertial particle clustering in isotropic turbulence (2008, background): “Direct numerical simulations (DNS) have shown the RDF can reach values in excess of 100 for certain parameter values (Reade & Collins 2000a; Wang et al. 2000).”
The effect of Reynolds number on inertial particle dynamics in isotropic turbulence. Part 2. Simulations with gravitational effects (2015, methodology): “We also see that for 1 St 10, the RDFs generally increase with increasing Sv, as expected, since gravity increases the ratio between the drift and the diffusion, as discussed in § 4.2.1.”
The effect of Reynolds number on inertial particle dynamics in isotropic turbulence. Part 1. Simulations without gravitational effects (2015, methodology): “3, the RDFs exhibited power-law scaling, consistent with Reade & Collins (2000a).”
Analyzing preferential concentration and clustering of inertial particles in turbulence (2012, methodology): “…2D DNS (Chen et al., 2006; Goto and Vassilicos, 2006; Coleman and Vassilicos, 2009), 3D DNS (Squires and Eaton, 1990, 1991; Wang and Maxey, 1993; Reade and Collins, 2000; Collins and Keswani, 2004; Bec et al., 2007a; Calzavarini et al., 2008; Goto and Vassilicos, 2008; Coleman and Vassilicos,…”
Scale-dependent droplet clustering in turbulent clouds (2001, background): “Similar finite size effects arise in the context of turbulent collision rates (Reade & Collins 2000).”
Fully resolved simulations of colliding monodisperse spheres in forced isotropic turbulence (2004, methodology): “In these studies the particles are typically much smaller than the resolution of the computational grid while Stokes drag is assumed to dominate the motion of the particles (Sundaram & Collins 1997; Reade & Collins 2000; Wang, Wexler & Zhou 1998, 2000; Brunk, Koch & Lion 1998).”
Theoretical Formulation of Collision Rate and Collision Efficiency of Hydrodynamically Interacting Cloud Droplets in Turbulent Atmosphere (2005, background): “For example, Reade and Collins (2000) demonstrated that the distribution near of for ghost particles could be quite different from that of finite-size, non-overlap hard-sphere particles.”
Modelling turbulent collision of bidisperse inertial particles (2001, methodology): “This may cause a strong dependence of the radial distribution function (RDF) on the size parameter R/η, as demonstrated by Reade & Collins (2000).”