Studying Hydroelastic Turbulence

Can energy at the small-scales of a turbulent flow work its way up to larger scales? That’s a question at the heart of today’s study. Here, researchers are studying hydroelastic waves — created by stretching a thin elastic membrane over a water tank. The membrane gets vibrated up and down in just one location with an amplitude of about 1 millimeter. The resulting waves depend both on the movement of the water and the elasticity of the membrane, mimicking situations like ice-covered seas.

Rather than simply dying away, the local fluctuations introduced at the membrane spread, coalescing into larger-scale hydroelastic waves. How energy flows between these scales could have implications for weather forecasting, climate modeling, and other turbulent systems. (Image and research credit: M. Vernet and E. Falcon; via APS)

Century-old turbulence theory confirmed in bubble swarm experiments

An international team of scientists has successfully shown that swarms of rising bubbles create turbulence that behaves exactly…
#NewsBeep #News #Physics #AU #Australia #bubble #Energy&Environment #Fluiddynamics #Kinematics #research #Science #study #turbulence #Water
https://www.newsbeep.com/au/79323/

Veil Nebula

These glowing wisps are the visible remains of a star that went supernova about 7,000 years ago. Today the supernova remnant is known as the Veil Nebula and is visible only through telescopes. In the image, red marks hydrogen gas and blue marks oxygen. First carried by shock waves, these remains of a former star now serve as seed material for other stars and planetary systems to form. (Image credit: A. Alharbi; via APOD)

ANA devient la première compagnie à déployer une IA de prédiction des turbulences (86 % de précision), pour plus de sécurité et confort.
https://www.air-journal.fr/2025-08-08-ana-innove-avec-une-technologie-pour-predire-les-turbulences-par-ia-5264598.html
#Aviation #Innovation #Sécurité #Turbulence #IA

Seeding Clouds With Wildfire

Raging wildfires send plumes of smoke up into the atmosphere; that smoke is made up of tiny particles that can serve as seeds — nucleation sites — where water vapor can freeze and form clouds. To understand wildfire’s effect on cloud growth, researchers sampled air from the troposphere (the atmosphere’s lowest layer) both in and around wildfire smoke.

The team found that smoke increased the number of nucleating particles up to 100 times higher than the background air, but the exact make-up of the smoke varied significantly by fire. Smoke particles were mostly organic, though inorganic ones appeared as well. The temperature of a fire, as well as what materials it was burning, made a big difference; the fire where they measured the highest particle concentrations included lots of unburned plant material, thought to be carried aloft by turbulence around the fire. (Image credit: K. Barry; research credit: K. Barry et al.; via Eos)

Turbulence forces Delta flight to land and sends 25 passengers to hospitals, airline says - This is an under-reported side effect of #ClimateChange and #GlobalWarming that many folks are unaware of. The #ClimateCrisis promises to make #AirTravel much more dangerous because of increased #turbulence. If we don’t do something substantial to turn this around soon, traveling by air just might become a lot more risky. #ClimateEmergency #airlines https://apnews.com/article/delta-flight-turbulence-injuries-f93bc14c4c6f27d0be137483938fddfe

And added #turbulence is linked to #climatechange: yet another reason to #staygrounded

https://abcnews.go.com/US/25-hospitalized-after-severe-turbulence-delta-flight/story?id=124230974&utm_source=firefox-newtab-en-us #wildfires #climate

#DeltaAirlines #Turbulence

From CNN.com: More than two dozen on Delta flight taken to hospitals after turbulence forces plane to make emergency landing

https://www.cnn.com/2025/07/31/travel/delta-minneapolis-emergency-landing-turbulence-hnk

We have a new toy: a dji Dock 3 with Matrice 4D #multicopter!

With this and our PARASITE payload on top, we can automate our atmospheric profiling flights and do *even more* #turbulence measurements for #windEnergy, #mountainWeather and improving #weatherForecast parametrisations

These #turbulence events are getting more frequent and more violent. How long with it be until their atmosphere is too cooked to allow for safe air travel?
#climatechange

https://www.cnn.com/2025/07/31/travel/delta-minneapolis-emergency-landing-turbulence-hnk?cid=ios_app

ABC News: 25 hospitalized after severe turbulence on Delta flight

There were 275 passengers and 13 crew members on board, the airline said.

"...Twenty-five people aboard a Delta Air Lines flight, headed from Salt Lake City to Amsterdam, were hospitalized after the flight encountered severe turbulence Wednesday, the airline said...."

https://abcnews.go.com/US/25-hospitalized-after-severe-turbulence-delta-flight/story?id=124230974

Turbulence at Air Serbia, the latest airline under cyber siege – Source: go.theregister.com https://ciso2ciso.com/turbulence-at-air-serbia-the-latest-airline-under-cyber-siege-source-go-theregister-com/ #rssfeedpostgeneratorecho #TheRegisterSecurity #CyberSecurityNews #TheRegister #Turbulence

#CopterPortrait Meet Flik¹, the #multicopter we developed our first #PARASITE payload for. It's a commercial dji Mavic 3E drone typically used for photography. Here, Flik is measuring for the #TeamX campaign in #Austria, which will eventually improve #mountainWeather forecasts.

Our PARASITE system (running #NixOS) has several ventilated meteorological sensors on board for temperature and relative humidity.

From all the data we get from copter and sensors we derive a fast 3D wind measurement. So yes: We can now measure #turbulence with a copter, without the need for an actual anemometer: The copter is our anemometer!

Comparisons in #Falkenberg with a @DeutscherWetterdienst tower shows that the data quality is comparable to ultrasonic anemometers - the current gold standard of operational turbulence measurements.

¹ yes, from #Pixar's #BugsLife

Bow Shock Instability

There are few flows more violent than planetary re-entry. Crossing a shock wave is always violent; it forces a sudden jump in density, temperature, and pressure. But at re-entry speeds this shock wave is so strong the density can jump by a factor of 13 or more, and the temperature increase is high enough that it literally rips air molecules apart into plasma.

Here, researchers show a numerical simulation of flow around a space capsule moving at Mach 28. The transition through the capsule’s bow shock is so violent that within a few milliseconds, all of the flow behind the shock wave is turbulent. Because turbulence is so good at mixing, this carries hot plasma closer to the capsule’s surface, causing the high temperatures visible in reds and yellows in the image. Also shown — in shades of gray — is the vorticity magnitude of flow around the capsule. (Image credit: A. Álvarez and A. Lozano-Duran)

Imagine being a brilliant physicist/mathematician and still avoiding the most important problems because your career depends on publishing frequent papers, not solving the biggest mysteries in the world.

That's why you can't do things like this in academia.

https://english.elpais.com/science-tech/2025-06-24/spanish-mathematician-javier-gomez-serrano-and-google-deepmind-team-up-to-solve-the-navier-stokes-million-dollar-problem.html

एयर इंडिया टर्बुलेंस: दिल्ली-पटना फ्लाइट में 171 यात्रियों की सांसें अटकीं, पायलट ने कराई सुरक्षित लैंडिंग #News #airindia #turbulence #incident

https://rightnewsindia.com/state/bihar/air-india-turbulence-171-passengers-in-delhi-patna-flight-were-left-breathless-pilot-made-a-safe-landing/176060/

See where your #airline flights will experience #climate-fueled #turbulence
Foudad led study which combined 11 climate models to predict where more extreme and dangerous clear-air turbulence would increase. “using all these climate models … we have now a high confidence at each degree of warming that we have an increase in this turbulence.” The above simulates the of a 2C (3.6F) increase from preindustrial temps which, according to some estimates, could fall before #2055
https://www.washingtonpost.com/climate-environment/interactive/2025/see-where-your-flights-will-experience-this-climate-fueled-turbulence/?pwapi_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJyZWFzb24iOiJnaWZ0IiwibmJmIjoxNzUwMDQ2NDAwLCJpc3MiOiJzdWJzY3JpcHRpb25zIiwiZXhwIjoxNzUxNDI4Nzk5LCJpYXQiOjE3NTAwNDY0MDAsImp0aSI6IjFlNjhlMDUzLWY3NjMtNDkyNC1iYWM3LWUwNGRkZmU1ZmI5NyIsInVybCI6Imh0dHBzOi8vd3d3Lndhc2hpbmd0b25wb3N0LmNvbS9jbGltYXRlLWVudmlyb25tZW50L2ludGVyYWN0aXZlLzIwMjUvc2VlLXdoZXJlLXlvdXItZmxpZ2h0cy13aWxsLWV4cGVyaWVuY2UtdGhpcy1jbGltYXRlLWZ1ZWxlZC10dXJidWxlbmNlLyJ9.l-9Fk4ksd6tDV1OpK9PC-WeGlqyALN4TaOTviqMniCs&itid=gfta

https://www.europesays.com/us/11562/ ‘Pure Chaos’ as Turbulence Injures 5 #AmericanAirlines #Business #turbulence #UnitedStates #UnitedStates #US

Stunning Interstellar Turbulence

The space between stars, known as the interstellar medium, may be sparse, but it is far from empty. Gas, dust, and plasma in this region forms compressible magnetized turbulence, with some pockets moving supersonically and others moving slower than sound. The flows here influence how stars form, how cosmic rays spread, and where metals and other planetary building blocks wind up. To better understand the physics of this region, researchers built a numerical simulation with over 1,000 billion grid points, creating an unprecedentedly detailed picture of this turbulence.

The images above are two-dimensional slices from the full 3D simulation. The upper image shows the current density while the lower one shows mass density. On the right side of the images, magnetic field lines are superimposed in white. The results are gorgeous. Can you imagine a fly-through video? (Image and research credit: J. Beattie et al.; via Gizmodo)

Globally: Northern AFR & Central Asia, along the most populated parts of CH, the Korean P, & JP, will see lg increases of severe turbulence in the atmosphere.

A 2023 analysis of historic chgs in clear-air #turbulence found that thelargest global increases occurred over the continental US & the North Atlantic Ocean.

Air traffic along the US SW will only continue to grow -airlines will be impacted by this extreme weather shifting with #globalwarming.”
#Climate #USPol https://www.washingtonpost.com/climate-environment/interactive/2025/see-where-your-flights-will-experience-this-climate-fueled-turbulence/