Understanding transmission dynamics of COVID-19-type infections by direct numerical simulations of cough/sneeze flows
The transmission dynamics of highly contagious respiratory diseases like COVID-19
(through coughing/sneezing) is an open problem in the epidemiological studies of such …
(through coughing/sneezing) is an open problem in the epidemiological studies of such …
Virus transmission by aerosol transport during short conversations
The SARS-CoV-2 is transmitted not only through coughing, but also through breathing,
speaking or singing. We perform direct numerical simulations of the turbulent transport of …
speaking or singing. We perform direct numerical simulations of the turbulent transport of …
Entrainment in dry and moist thermals
GR Vybhav, S Ravichandran - Physical Review Fluids, 2022 - APS
We study entrainment in dry thermals in neutrally and unstably stratified ambients, and moist
thermals in dry-neutrally stratified ambients using direct numerical simulations. We find, in …
thermals in dry-neutrally stratified ambients using direct numerical simulations. We find, in …
The combined effects of buoyancy, rotation, and shear on phase boundary evolution
S Ravichandran, S Toppaladoddi… - Journal of Fluid …, 2022 - cambridge.org
We use well-resolved numerical simulations to study the combined effects of buoyancy,
pressure-driven shear and rotation on the melt rate and morphology of a layer of pure solid …
pressure-driven shear and rotation on the melt rate and morphology of a layer of pure solid …
Direct numerical simulation of a moist cough flow using Eulerian approximation for liquid droplets
R Singhal, S Ravichandran… - International Journal of …, 2021 - Taylor & Francis
The COVID-19 pandemic has inspired several studies on the fluid dynamics of respiratory
events. Here, we propose a computational approach in which respiratory droplets are …
events. Here, we propose a computational approach in which respiratory droplets are …
Turbulent diffusion of scalar and heat in an off-source heated steady round jet
We study, using direct numerical simulation, the characteristics of an off-source heated jet
(OSHJ), the rate of heat addition being proportional to the local concentration of a scalar …
(OSHJ), the rate of heat addition being proportional to the local concentration of a scalar …