#heattransfer — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #heattransfer, aggregated by home.social.
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How do vapor bubbles behave when water is below boiling?
Laser-induced bubbles offer a controlled way to probe nucleation and collapse dynamics far from equilibrium.
#phasechange #bubbledynamics #heattransfer #FluidPhysics #fluiddynamics
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How do vapor bubbles behave when water is below boiling?
Laser-induced bubbles offer a controlled way to probe nucleation and collapse dynamics far from equilibrium.
#phasechange #bubbledynamics #heattransfer #FluidPhysics #fluiddynamics
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If the #LeidenfrostEffect fascinates you as much as it does us, we highly recommend reading this review by Seán M. Stewart.
🔗 https://doi.org/10.1088/1361-6404/ac3fed
Beyond a simple overview, this article traces the scientific history of the phenomenon, while providing a rich and detailed perspective on the dynamics of Leidenfrost droplets.
Enjoy the read!
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Cooling is rarely steady. Experiments show how heat transfer changes dynamically during rapid temperature drops.
These transient effects matter for boiling regimes and could help refine models of vapor layer formation.
#heattransfer #phasechange #leidenfrosteffect #thermodynamics #physics
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Cooling is rarely steady. Experiments show how heat transfer changes dynamically during rapid temperature drops.
These transient effects matter for boiling regimes and could help refine models of vapor layer formation.
#heattransfer #phasechange #leidenfrosteffect #thermodynamics #physics
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Cooling is rarely steady. Experiments show how heat transfer changes dynamically during rapid temperature drops.
These transient effects matter for boiling regimes and could help refine models of vapor layer formation.
#heattransfer #phasechange #leidenfrosteffect #thermodynamics #physics
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Cooling is rarely steady. Experiments show how heat transfer changes dynamically during rapid temperature drops.
These transient effects matter for boiling regimes and could help refine models of vapor layer formation.
#heattransfer #phasechange #leidenfrosteffect #thermodynamics #physics
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Cooling is rarely steady. Experiments show how heat transfer changes dynamically during rapid temperature drops.
These transient effects matter for boiling regimes and could help refine models of vapor layer formation.
#heattransfer #phasechange #leidenfrosteffect #thermodynamics #physics
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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
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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
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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
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Great moments at #Euromech Colloquium 651 in Metz with LeidenForce members!
In the photo: @stephanedorbolo @UniversitedeLiege, cochair, and Benoit Scheid @ULBruxelles presenting on “Bubble and droplet dynamics in inertial microfluidics”.
Also Anne-Laure Biance @cnrs with a talk on “Triboelectricity in droplet impact on superhydrophobic surfaces.” -
Hydraulic diameter (Hydrology 💧)
The hydraulic diameter, DH, is a commonly used term when handling flow in non-circular tubes and channels. Using this term, one can calculate many things in the same way as for a round tube. When the cross-section is uniform along the tube or channel length, it is defined as D H = 4 A P, {\displaystyle D_{\text{H}}={\frac {4A}{P}},}...
https://en.wikipedia.org/wiki/Hydraulic_diameter
#HydraulicDiameter #Radii #Hydrology #Hydraulics #HeatTransfer #FluidDynamics
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Earth's internal heat budget (Earth 🌍)
Earth's internal heat budget is fundamental to the thermal history of the Earth. The flow of heat from Earth's interior to the surface is estimated at 47±2 terawatts and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantl...
https://en.wikipedia.org/wiki/Earth's_internal_heat_budget
#EarthSInternalHeatBudget #Earth #Geodynamics #HeatTransfer #PlateTectonics #GeothermalEnergy