Scaling of turbulence and microphysics in a convection–cloud chamber of varying height

S Thomas, F Yang, M Ovchinnikov… - Journal of Advances …, 2023 - Wiley Online Library
The convection–cloud chamber enables measurement of aerosol and cloud microphysics,
as well as their interactions, within a turbulent environment under steady‐state conditions …

Enhancements in cloud condensation nuclei activity from turbulent fluctuations in supersaturation

JC Anderson, P Beeler, M Ovchinnikov… - Geophysical …, 2023 - Wiley Online Library
The effect of aerosols on the properties of clouds is a large source of uncertainty in
predictions of weather and climate. These aerosol‐cloud interactions depend critically on …

Designing a convection‐cloud chamber for collision‐coalescence using large‐eddy simulation with bin microphysics

A Wang, M Ovchinnikov, F Yang… - Journal of Advances …, 2024 - Wiley Online Library
Collisional growth of cloud droplets is an essential yet uncertain process for drizzle and
precipitation formation. To improve the quantitative understanding of this key component of …

Addressing complexity in global aerosol climate model cloud microphysics

U Proske, S Ferrachat, S Klampt… - Journal of Advances …, 2023 - Wiley Online Library
In a quest to represent the Earth system, climate models have become more and more
complex. This generates problems, for example, hindering model interpretability. This study …

[HTML][HTML] An Investigation of LES Wall Modeling for Rayleigh–Bénard Convection via Interpretable and Physics-Aware Feedforward Neural Networks with DNS

A Wang, XIA Yang… - Journal of the Atmospheric …, 2024 - journals.ametsoc.org
The traditional approach of using the Monin–Obukhov similarity theory (MOST) to model
near-surface processes in large-eddy simulations (LESs) can lead to significant errors in …

The Dual Nature of Entrainment-Mixing Signatures Revealed Through Large-Eddy Simulations of a Convection-Cloud Chamber

A Wang, M Ovchinnikov, F Yang… - Journal of the …, 2024 - journals.ametsoc.org
Entrainment of subsaturated air into a cloud can influence its optical and microphysical
properties in various ways, depending on the droplet evaporation and turbulent mixing time …

Sources of stochasticity in the growth of cloud droplets: Supersaturation fluctuations versus turbulent transport

P Prabhakaran, S Thomas, W Cantrell… - Journal of the …, 2022 - journals.ametsoc.org
The role played by fluctuations of supersaturation in the growth of cloud droplets is
examined in this study. The stochastic condensation framework and the three regimes of …

An intercomparison of large‐eddy simulations of a convection cloud chamber using haze‐capable bin and Lagrangian cloud microphysics schemes

F Yang, F Hoffmann, RA Shaw… - Journal of Advances …, 2023 - Wiley Online Library
Recent in situ observations show that haze particles exist in a convection cloud chamber.
The microphysics schemes previously used for large‐eddy simulations of the cloud chamber …

Glaciation of mixed-phase clouds: insights from bulk model and bin-microphysics large-eddy simulation informed by laboratory experiment

A Wang, S Krueger, S Chen… - Atmospheric …, 2024 - acp.copernicus.org
Mixed-phase clouds affect precipitation and radiation differently from liquid and ice clouds,
posing greater challenges to their representation in numerical simulations. Recent …

Preserving tracer correlations in moment‐based atmospheric transport models

R McGraw, F Yang, LM Fierce - Journal of Advances in …, 2024 - Wiley Online Library
A linear non‐diffusive algorithm for advective transport is developed that greatly improves
the detail at which aerosols and clouds can be represented in atmospheric models. Linear …