Tiny pressure oscillations can strongly affect #BubbleDynamics during #boiling.

Understanding these instabilities is key to predicting transitions toward #Leidenfrost states and improving #HeatTransfer control in extreme thermal conditions.

🔗 https://pubs.aip.org/aip/pof/article/38/4/043104/3386747/The-impact-of-pressure-oscillations-on-bubble

#FluidDynamics

Droplet impacts on superheated surfaces do not cool smoothly. This study shows a nonlinear shift driven by vapor film dynamics.

Above a critical impact velocity, heat transfer jumps sharply, revealing a threshold behavior linked to the Leidenfrost regime.

https://doi.org/10.1063/5.0320873

#HeatTransfer #FluidDynamics #Leidenfrost #Cooling #Physics

This month, CTCS (IIT Madras) & @PIK_climate present a webinar
📢: On the absence of the ultimate regime in turbulent thermal convection
🎙️: Prof. Mahendra Verma, IIT Kanpur
📅: May 25 |⏰19:30 IST | 16:00 CEST | 10:00 EDT
🔗: https://us06web.zoom.us/webinar/register/WN_K4F5k9O4QmuZbt5uZNj9Qw

#ComplexSystems #webinarinvite #Zoomcodes #IITMadras #IITK #PIK #Nonlineardynamics #Turbulence #BoundaryLayer #FluidDynamics #Bifurcations #FluidMechanics #HeatTransfer #Convection #Scaling

If you aren't making use of your library's makerspace you're missing out.

#Libraries
#makerspace
#LaserEtching
#HeatTransfer
#SublimationPrinting

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.

🔗 https://pubs.aip.org/aip/pof/article-abstract/38/3/033340/3384397/Laser-induced-vapor-bubbles-in-subcooled-water

#phasechange #bubbledynamics #heattransfer #FluidPhysics #fluiddynamics

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!

#fluiddynamics #heattransfer #physics #HistoryOfScience

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.

🔗 https://pubs.aip.org/aip/pof/article-abstract/38/3/035103/3381827/Experimental-investigation-of-unsteady-cooling?redirectedFrom=fulltext

#heattransfer #phasechange #leidenfrosteffect #thermodynamics #physics

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.

🔗 https://pubs.aip.org/aip/pof/article/38/2/024119/3380433/Flow-pattern-recognition-of-condensing-steam-jet

#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