Study compares sound from exploding volcanoes with jet engines
New research on infrasound from volcanic eruptions shows an unexpected connection with jet engines. Researchers at Scripps Institution of Oceanography at UC San Diego speeded up the recorded sounds...
View ArticleSlotted buses keep passengers cool
A simple redesign of public buses used in hot and dry climates could make passengers more comfortable without the need to use extra fuel running air conditioning, according to a study published in the...
View ArticleWeir in space and dimmed sun creates 200-million-mile-long lab bench for...
Physicists working in space plasmas have made clever use of the Ulysses spacecraft and the solar minimum to create a massive virtual lab bench to provide a unique test for the science underlying...
View ArticleRandomness rules in turbulent flows
It seems perfectly natural to expect that two motorists who depart from the same location and follow the same directions will end up at the same destination. But according to a Johns Hopkins University...
View ArticleUnderstanding a novel form of turbulence
French researchers from CNRS have provided solutions to important problems related to turbulent flow in stratified systems such as the oceans and the atmosphere.
View ArticleTurbulent flows in 2D can be calculated in new model
Turbulent flows have challenged researchers for centuries. It is impossible to predict chaotic weather more than a week in advance. Wind resistance on a plane or a car cannot be calculated precisely,...
View ArticleSitting still or going hunting: Which works better?
For the kinds of animals that are most familiar to us—ones that are big enough to see—it's a no-brainer: Is it better to sit around and wait for food to come to you, or to move around and find it?...
View ArticleMathematical butterflies provide insight into how insects fly
Researchers have developed sophisticated numerical simulations of a butterfly's forward flight.
View ArticleResearch helps to show how turbulence can occur without inertia
(Phys.org) —Anyone who has flown in an airplane knows about turbulence, or when the flow of a fluid—in this case, the flow of air over the wings—becomes chaotic and unstable. For more than a century,...
View ArticleEngineers gain insight into turbulence formation and evolution in fluids
in the patterns that natural gas makes as it swirls through a transcontinental pipeline or in the drag that occurs as a plane soars through the sky. Reducing such turbulence on say, an airplane wing,...
View ArticleEngineers ask the question: How did the plesiosaur swim?
(Phys.org) —There are plenty of opportunities for undergraduate students to take part in leading-edge research at the University of Alberta. But when Laurel Richards heard about a chance to investigate...
View ArticleNew particle-sorting method breaks speed records
Researchers compare the processing of biological fluid samples with searching for a needle in a haystack—only in this case, the haystack could be diagnostic samples, and the needle might be tumor cells...
View ArticleScientists prove possibility of 'impossible' dust transition in turbulent flow
Researchers from MIPT and the Weizmann Institute of Science (Israel) have predicted the possibility of negative turbophoresis, a phenomenon where impurity particles inside a turbulent flow move in an...
View ArticleScientists discover rigid structure in centre of turbulence
Pioneering mathematical engineers have discovered for the first time a rigid structure which exists within the centre of turbulence, leading to hope that its chaotic movement could be controlled in the...
View ArticleRobotic fish navigate flowscapes
The EU funded European research project FILOSE has developed robots with a new sense - lateral line sensing. All fish have this sensing organ but so far it had no technological counterpart on man-made...
View ArticleAn airflow model to reduce time on the tarmac
Plans for summer holidays are already taking shape. But before jetting off for some fun in the sun, many travellers will have to cope with long delays on the airport runway.
View ArticleEcological extinction explains how turbulence dies
As anyone who has experienced turbulence knows, its onset and departure are abrupt, and how long it lasts seems to be unpredictable. Fast flowing fluids are always turbulent, but at slower speeds the...
View ArticleTurbulence in bacterial cultures
Turbulent flows surround us, from complex cloud formations to rapidly flowing rivers. Populations of motile bacteria in liquid media can also exhibit patterns of collective motion that resemble...
View ArticleExplainer: How dangerous is turbulence, and can it bring down a plane?
If you have ever travelled on an aeroplane the chances are you have experienced some form of turbulence. For those of us who fly infrequently, it can be alarming and unnerving, but rest assured that...
View ArticleNREL to lead one exascale computing project, support three others
Scientists at the Energy Department's (DOE) National Renewable Energy Laboratory (NREL) will lead an effort to model the complex and turbulent flow of wind through large wind plants as part of DOE's...
View ArticleFrom the butterfly's wing to the tornado: Predicting turbulence
An old adage holds that the flap of a butterfly's wing in Brazil can trigger a tornado in Texas weeks later. Though chaos theory says it's basically impossible to compute exactly how that might happen,...
View ArticleClarifying the mechanism for suppressing turbulence through ion mass
Seeking to further improve plasma performance, from March 7, 2017, plasma experiments utilizing deuterium ions, which have twice the mass of hydrogen, were initiated in the Large Helical Device (LHD)...
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