#DropImpact
LightNews LightNews
leidenforce.bsky.social
When a drop hits a viscous liquid film, its kinetic energy can go into spreading, penetrating the film or bouncing back.

Changing the density ratio shifts this balance, revealing new regimes of impact dynamics.

🔗 doi.org/10.1063/5.03...

#FluidDynamics #DropImpact #InterfacialFlows
Impact dynamics of drop on viscous liquid films with density contrast
This study numerically investigates drop impact dynamics on viscous liquid films, focusing on the underexplored role of the film-to-drop density ratio ( λ). Usi
doi.org
September 21, 2026 at 6:49 AM
leidenforce.bsky.social
How much does #SurfaceTexture affect a droplet after impact? This work extends classic spreading models by incorporating roughness into the energy balance, improving predictions for #WaterDroplets on textured surfaces.

🔗 pubs.rsc.org/sm/article/2...

#FluidDynamics #DropImpact #SoftMatter
Submit This Form
pubs.rsc.org
August 12, 2026 at 9:25 AM
leidenforce.bsky.social
Droplet penetration through a prewetted hole array occurs only within a finite region around the impact point.

A simple model links this penetration zone to film thickness, hole diameter and #WeberNumber.

🔗 doi.org/10.1063/5.03...

#FluidDynamics #DropImpact #InterfacialFlows #capillarity
Droplet penetration through a prewetted hole array
Droplet penetration through prewetted hole arrays was investigated experimentally and theoretically, with particular attention to the effects of film thickness,
doi.org
July 1, 2026 at 6:18 AM
leidenforce.bsky.social
• #DropImpact: collision and #Splash •

Droplet impacts are complex, shaped by capillarity and inertia. Explore this in the @espciparispsl.bsky.social MOOC video.

🎥 www.youtube.com/watch?v=SGb6...

⏳ No time right now? Save this post and come back later

#FluidDynamics #LeidenfrostEffect
www.youtube.com
June 9, 2026 at 7:34 AM
leidenforce.bsky.social
When a drop or object hits water, a narrow high-speed jet can shoot upward: the #WorthingtonJet. This study reveals universal scaling laws that govern how these jets form and evolve across different impact conditions.

🔗 journals.aps.org/prfluids/abs...

#FluidDynamics #DropImpact #InterfacialFlows
Dynamics and universal scaling of Worthington jets in the cavity-free regime
Existing research on Worthington jets has paid most attention to those forced by cavity collapse. Focusing on the cavity-free regime across various sphere-liquid impact configurations, we derive a uni...
journals.aps.org
April 2, 2026 at 7:14 AM
leidenforce.bsky.social
Day 2 #LeidenForce Winter School
Lecture by Detlef Lohse @utwente.bsky.social on the dynamics of drops and Leidenfrost drops, highlighting the richness and complexity of droplet impacts.
➡️ www.leidenforce.eu/partners

#LeidenfrostEffect #FluidDynamics #DropImpact #Research
Detlef during his talk at LeidenForce Winter school Detlef during his talk at LeidenForce Winter school
January 27, 2026 at 12:59 PM