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Search results for fluid mechanics

General Âé¶¹ÒùÔºics Jun 22, 2021

Tree pollen carries SARS-CoV-2 particles farther, facilitates virus spread

Most models explaining how viruses are transmitted focus on viral particles escaping one person to infect a nearby person. A study on the role of microscopic particles in how viruses are transmitted suggests pollen is nothing ...

Earth Sciences Jun 21, 2021

Researchers develop a model to better understand the forces that generate tsunamis

The word "tsunami" brings immediately to mind the havoc that can be wrought by these uniquely powerful waves. The tsunamis we hear about most often are caused by undersea earthquakes, and the waves they generate can travel ...

Condensed Matter Jun 15, 2021

Fuel flow, heat fluctuations drive dangerous oscillations in rocket engines

Combustion engines can develop high frequency oscillations, leading to structural damage to the engines and unsafe operating conditions. A detailed understanding of the physical mechanism that causes these oscillations is ...

General Âé¶¹ÒùÔºics Jun 14, 2021

Scientists expose the cold heart of landfalling hurricanes

Hurricanes are powerful weather events born in the open sea. Fueled by moisture from the warm ocean, hurricanes can intensify in strength, move vast distances across the water, and ultimately unleash their destruction upon ...

Soft Matter Jun 9, 2021

Normal breathing sends saliva droplets 7 feet; masks shorten this

The World Health Organization and the Centers for Disease Control recommend keeping a certain distance between people to prevent the spread of COVID-19. These social distancing recommendations are estimated from a variety ...

General Âé¶¹ÒùÔºics Jun 7, 2021

Artificial intelligence and data mining are being used to measure aerodynamic flows

Developing new ways to measure turbulent flows that are more efficient and reliable is the main objective of the NEXTFLOW research project at the Universidad Carlos III de Madrid (UC3M), funded by an ERC Starting Grant from ...

General Âé¶¹ÒùÔºics Jun 2, 2021

Researchers learn how swimming ducks balance water pressure in their feathers while diving

A team of students working with Jonathan Boreyko, associate professor in mechanical engineering at Virginia Tech, has discovered the method ducks use to suspend water in their feathers while diving, allowing them to shake ...

General Âé¶¹ÒùÔºics May 31, 2021

Researchers discover that a mechanical cue is at the origin of cell death decision

In many species including humans, the cells responsible for reproduction, the germ cells, are often highly interconnected and share their cytoplasm. In the hermaphrodite nematode Caenorhabditis elegans, up to 500 germ cells ...

Environment May 26, 2021

Floating ocean plastic can get a boost to its wave-induced transport because of its size

Plastic pollution and other ocean debris are a complex global environmental problem. Every year, ten million tons of plastic are estimated to be mismanaged, resulting in entry into the ocean, of which half will float initially. ...

Earth Sciences May 25, 2021

'Slow slip' earthquakes' hidden mechanics revealed

Slow slip earthquakes, a type of slow motion tremor, have been detected at many of the world's earthquake hotspots, including those found around the Pacific Ring of Fire, but it is unclear how they are connected to the damaging ...

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