There is also an inverse Leidenfrost effect, first described in 1969, that involves a hot object such as a droplet levitating above a cold surface. Understanding the mechanisms behind these ...

(Nanowerk News) An oil droplet that is placed on a very cold fluid surface, will start moving and keep on moving in straight lines, for many minutes. Even if the drop, initially at room temperature, ...

Now, scientists successfully simulated the solidification process of a molten droplet as it impinges on a cooler flat surface. This approach uses a mesh-less method to accurately predict the ...

New discovery about how surface gradients influence droplet behavior may enable novel surfaces with anti-icing capabilities for a tremendous range of applications. Studies of the impact a droplet ...

This is also known as the "coffee-ring effect" (CRE) in the literature. We extend the much-studied CRE and study the evaporation of a droplet on a surface containing colloidal particles in a saturated ...

Their work, published in Advanced Functional Materials ("Programmable Droplet Bouncing on Bionic Functional Surfaces for Continuous Electricity Generation"), demonstrates how purposeful surface design ...

The droplet leaches its acid into the surrounding solution, losing hydrogen ions in a process known as deprotonation – a process that affects the surface tension of the droplet itself.

When the drops merge, the loss in surface area releases some of the energy that was maintaining surface tension in the original drops. That is converted into the kinetic energy required to ...