Extended lifetime of respiratory droplets in a turbulent vapor puff and its implications on airborne disease transmission

KL Chong, CS Ng, N Hori, R Yang, R Verzicco… - Physical review …, 2021 - APS
To quantify the fate of respiratory droplets under different ambient relative humidities, direct
numerical simulations of a typical respiratory event are performed. We found that, because …

Short-range exposure to airborne virus transmission and current guidelines

J Wang, M Alipour, G Soligo… - Proceedings of the …, 2021 - National Acad Sciences
After the Spanish flu pandemic, it was apparent that airborne transmission was crucial to
spreading virus contagion, and research responded by producing several fundamental …

Growth of respiratory droplets in cold and humid air

CS Ng, KL Chong, R Yang, M Li, R Verzicco, D Lohse - Physical Review Fluids, 2021 - APS
The ambient conditions surrounding liquid droplets determine their growth or shrinkage.
However, the precise fate of a liquid droplet expelled from a respiratory puff as dictated by its …

Modelling the direct virus exposure risk associated with respiratory events

J Wang, F Dalla Barba, A Roccon… - Journal of the …, 2022 - royalsocietypublishing.org
The outbreak of the COVID-19 pandemic highlighted the importance of accurately modelling
the pathogen transmission via droplets and aerosols emitted while speaking, coughing and …

[HTML][HTML] Revisiting D2-law for the evaporation of dilute droplets

F Dalla Barba, J Wang, F Picano - Physics of Fluids, 2021 - pubs.aip.org
In a wide range of applications, the estimate of droplet evaporation time is based on the
classical D 2-law, which, assuming a fast mixing and fixed environmental properties, states …

Finite-size evaporating droplets in weakly compressible homogeneous shear turbulence

N Scapin, F Dalla Barba, G Lupo, ME Rosti… - Journal of Fluid …, 2022 - cambridge.org
Finite-size evaporating droplets in weakly compressible homogeneous shear turbulence Page
1 J. Fluid Mech. (2022), vol. 934, A15, doi:10.1017/jfm.2021.1140 Finite-size evaporating …

Heat transfer in drop-laden turbulence

F Mangani, A Roccon, F Zonta… - Journal of Fluid …, 2024 - cambridge.org
Heat transfer by large deformable drops in a turbulent flow is a complex and rich-in-physics
system, in which drop deformation, breakage and coalescence influence the transport of …

Evaporation and clustering of ammonia droplets in a hot environment

L Angelilli, FE Hernández Pérez, HG Im, PP Ciottoli… - Physical Review …, 2022 - APS
Recent developments in the transition to zero-carbon fuels show that ammonia is a valid
candidate for combustion. However, liquid ammonia combustion is difficult to stabilize due to …

A model to predict the short-term turbulent indoor dispersion of small droplets and droplet nuclei released from coughs and sneezes

J Pallares, A Fabregat - Indoor and Built Environment, 2022 - journals.sagepub.com
We propose a simple model to predict the short-term indoor turbulent dispersion of the
aerosol cloud produced by violent expiratory events. Once the air injection ceases, the …

A computational fluid dynamics—Population balance equation approach for evaporating cough droplets transport

Y Feng, D Li, D Marchisio, M Vanni, A Buffo - International Journal of …, 2023 - Elsevier
Abstract Airborne diseases, including COVID-19, are transmitted by respiratory droplets,
which makes the study of the evolution of these droplets important to control the …