Physics of Fluids

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Using Physics to Improve Root Canal Efficiency

WASHINGTON, August 11, 2020 — Scientists used computational fluid dynamics to determine the effect of temperature on root canal cleaning efficiency. Higher temperatures can, to a point, […]

Droplet Spread from Humans Doesn’t Always Follow Airflow

WASHINGTON, August 4, 2020 — The World Health Organization has warned that aerosol transmission of COVID-19 is being underestimated. If aerosol spread is confirmed to be significant, […]

Face Mask Construction, Materials Matter for Containing Coughing, Sneezing Droplets

WASHINGTON, June 30, 2020 — While the use of face masks in public has been widely recommended by public health officials during the current COVID-19 pandemic, there […]

Respiratory Droplet Motion, Evaporation and Spread of COVID-19-Type Pandemics

WASHINGTON, June 30, 2020 — It is well established that the SARS-CoV-2 virus responsible for the COVID-19 disease is transmitted via respiratory droplets that infected people eject […]

Flushing Toilets Create Clouds of Virus-Containing Particles

WASHINGTON, June 16, 2020 — Researchers used a computer simulation to show how a flushing toilet can create a cloud of virus-containing aerosol droplets that is large […]

Survival of Coronavirus in Different Cities, on Different Surfaces

WASHINGTON, June 9, 2020 — One of the many questions researchers have about COVID-19 is how long the coronavirus causing the disease remains alive after someone infected […]

Six Feet Not Far Enough to Stop Virus Transmission in Light Winds

WASHINGTON, May 19, 2020 — Airborne transmission of viruses, like the virus causing COVID-19, is not well understood, but a good baseline for study is a deeper […]

Bubble Dynamics Reveal How to Empty Bottles Faster

WASHINGTON, April 7, 2020 — Bottle emptying is a phenomenon most of us have observed while pouring a beverage. Researchers from the Indian Institute of Technology Roorkee […]

Adjusting Processing Temperature Results in Better Hydrogels for Biomedical Applications

WASHINGTON, March 24, 2020 — Biohydrogels — biomaterials composed of polymer chains dispersed in water — have been studied closely by researchers for their potential use in […]