How do you identify flow regimes in a condensing steam jet? A new study uses chaos analysis to distinguish stable jets, oscillating jets and bubbly flow using just two parameters.
A simple way to track complex vapor–liquid dynamics.
#FluidDynamics #TwoPhaseFlow #Condensation #HeatTransfer #PhysicsOfFluids
How surface microstructures affect Leidenfrost droplets.
Numerical results show that pillar size and spacing control vapour escape under the drop, which can delay or suppress the Leidenfrost state and modify droplet rebound.
🔗 https://pubs.aip.org/aip/pof/article/38/3/032007/3382441/Numerical-study-of-bouncing-Leidenfrost
#Leidenfrost #DropletDynamics #HeatTransfer #FluidDynamics #NumericalSimulation
How do hypersonic engines survive extreme temperatures? A numerical study investigates a novel regenerative cooling channel where methane fuel flows through the engine walls, helping control heat while feeding the combustion system.
🔗 https://pubs.aip.org/aip/pof/article-abstract/38/2/025145/3380432
#Hypersonics #Scramjet #HeatTransfer #CoolingTechnology #FluidDynamics
Smaller jet-to-plate distances intensify turbulence in swirl jets, highlighting how impingement geometry controls flow patterns. Key insights for heat management and surface-fluid interaction studies.
#fluidmechanics #heattransfer #SwirlJets #turbulence #FlowTopology
Mars’ young volcanoes show multi-phase magma flows, revealing complex #FluidDynamics beneath Pavonis Mons.
Studying these planetary flows can inform models of heat and phase transfer in extreme environments.
🔗 https://phys.org/news/2026-02-mars-young-volcanoes-complex-scientists.html
What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, where magma moves, evolves, and changes over long periods of time. To fully understand how volcanoes work, scientists study the volcanic products that erupt at the surface, which can reveal the hidden magmatic systems feeding volcanic activity.
LeidenForce #WinterSchool 2026 begins next week @utwente 🇳🇱.
Over 4 days, experts and PhD students will engage in scientific discussions on the #Leidenfrosteffect and related physical mechanisms.
As the year begins, LeidenForce enters a particularly dynamic phase. The Winter School 2026, which will take place next week in Bad Boekelo, on the campus of the University of Twente (Netherlands), will bring together researchers, experts, and PhD students for four days dedicated to the in-depth study of the Leidenfrost phenomenon. Read more
LeidenForce quiz of the day: can you solve our Fake or Fact?
In our Fake or Fact series, we test your science knowledge about the Leidenfrost effect!
#FluidDynamics #DailyScience #LeidenfrostEffect #Physics #FakeOrFact #HeatTransfer
Droplets on heated, textured surfaces – how do they move?
Vahid Taheri (DC#5) joins #LeidenForce to study how surface microstructures control droplet dynamics and the Leidenfrost temperature.
With Prof. Maria Fernandino (NTNU), @airbus & Université de Lille
🔗 Read more: https://shorturl.at/bNu4x
Oceans Could “Burp” Out Absorbed Heat
Earth’s atmosphere and oceans form a complicated and interconnected system. Water, carbon, nutrients, and heat move back and forth between them. As humanity pumps more carbon and heat into the atmosphere, the oceans–and particularly the Southern Ocean–have been absorbing both. A new study looks ahead at what the long-term consequences of that could be.
The team modeled a scenario where, after decades of carbon emissions, the world instead sees a net decrease in carbon–which could be achieved by combining green energy production with carbon uptake technologies. They found that, after centuries of carbon reduction and gradual cooling, the Southern Ocean could release some of its pent-up heat in a “burp” that would raise global temperatures by tenths of a degree for decades to a century. The burp would not raise carbon levels, though.
The research suggests that we should continue working to understand the complex balance between the atmosphere and oceans–and how our changes will affect that balance not only now but in the future. (Image credit: J. Owens; research credit: I. Frenger et al.; via Eos)
#CFD #climateChange #computationalFluidDynamics #fluidDynamics #geophysics #heatTransfer #numericalSimulation #ocean #physics #science
What happens when a droplet meets another liquid heated far beyond its boiling point?
That’s the challenge explored by Arghya Mukherjee (DC#8), who has just joined #LeidenForce to study the Leidenfrost effect on liquid baths — an area still largely uncharted.
Supervision: Benjamin Sobac (LFCR, @cnrs -UPPA) & @stephanedorbolo @UniversitedeLiege F.R.S.–FNRS).
LeidenForce
Nicole Sharp