Effects of turbulence on the geometric collision rate of sedimenting droplets. Part 2. Theory and parameterization

By Orlando M. Ayala, B. Rosa, Lian-Ping Wang. 2008

162 citations recorded by the source corpus.

There is a typo in equation (76) of the paper which is corrected here. We also wish to take this opportunity to comment on the numerical equivalence of equation (80) and the alternative form mentioned on page 37. Please see the PDF for details.

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

View Paper: https://www.semanticscholar.org/paper/027036a90518739756f31cb70b0372f0439ad3ec

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Citations in the corpus

The Parallelized Large-Eddy Simulation Model (PALM) version 4.0 for atmospheric and oceanic flows: model formulation, recent developments, and future perspectives (2015, background): “…applied by various authors to study turbulent ﬂows inside and above homogeneous as well as heterogeneous canopies such as forest edges (Cassiani et al., 2008; Finnigan et al., 2009; Dupont and Brunet, 2009, among others In case of incoming solar radiation the plant canopy acts as a source of heat .”
The effect of Reynolds number on inertial particle dynamics in isotropic turbulence. Part 1. Simulations without gravitational effects (2015, background): “Such particles, however, are generally above the size range of droplets in atmospheric clouds (e.g. see Ayala et al. 2008), and thus our primary focus is on the collision rates of smaller (St .”
Effects of turbulence on the geometric collision rate of sedimenting droplets. Part 1. Results from direct numerical simulation (2008, unknown): “In another contribution to this focus issue [54], we will develop a theoretical parameterization of the turbulent collision kernel and compare the theory to the DNS results in this paper.”
Representation of microphysical processes in cloud‐resolving models: Spectral (bin) microphysics versus bulk parameterization (2015, methodology): “Dramatic convergence of the values of the collision enhancement factor calculated using different approaches (direct numerical simulations, theoretical studies, and laboratory experiments) has been achieved [Ayala et al., 2008; Pinsky et al., 2008b; Devenish et al., 2012].”
The effect of Reynolds number on inertial particle dynamics in isotropic turbulence. Part 2. Simulations with gravitational effects (2015, background): “…velocity (Wang & Maxey 1993; Yang & Lei 1998; Yang & Shy 2005; Ireland & Collins 2012; Bec et al. 2014; Good et al. 2014) and the collision frequency (Franklin, Vaillancourt & Yau 2007; Ayala et al. 2008; Onishi, Takahashi & Komori 2009; Woittiez et al. 2009; Rosa et al. 2013; Bec et al. 2014).”
Growth of Cloud Droplets in a Turbulent Environment (2013, methodology): “25 cos α , (7) where the fluid acceleration scaling is taken from Zaichik et al. (2003), which incorporates flow intermittency (see also Ayala et al. 2008a, section 2.1).”