Why does viscosity matter for liquid levitation?

High-speed imaging reveals that more viscous liquids need larger oscillation amplitudes to stay levitated, while the upper and lower interfaces respond very differently to dissipation.

🔗 https://doi.org/10.1063/5.0335876

#FluidMechanics #Levitation #InterfacialPhysics #Viscosity #FaradayWaves

What looks like a “forbidden liquid shape” is likely a case of nanoparticles reshaping interfacial energy.

Magnetized particles may rigidify the boundary between immiscible fluids.

🔗 https://www.science-et-vie.com/sciences-fondamentales/en-melangeant-de-leau-de-lhuile-et-du-nickel-un-etudiant-a-defie-les-lois-de-la-physique-en-creant-un-liquide-impossible-211900.html

#InterfacialPhysics #Colloids #MagneticMaterials #Thermodynamics #ComplexFluids

What happens when two miscible liquids inside a droplet have different interfacial tensions?

A lattice Boltzmann study reveals spontaneous internal flows that break symmetry, accelerate mixing and reshape concentration patterns inside microdroplets.

🔗 https://doi.org/10.1063/5.0321035

#Microdroplets #FluidMechanics #InterfacialPhysics #Microfluidics #marangonieffect

Antibubbles form only under precise conditions: droplet impact must trap air and generate a secondary jet droplet.

This study shows an optimal Weber number where formation peaks, balancing inertia and capillarity.

🔗 https://doi.org/10.1063/5.0316890

#FluidDynamics #InterfacialPhysics #WeberNumber #ThinFilms #Antibubbles

When a thin interfacial layer reconfigures macroscopic flow.

🔗 https://journals.aps.org/prfluids/abstract/10.1103/hcyb-7nhz

#InterfacialPhysics #Hydrodynamics #NonlinearDynamics #Multiphase