Wiki Tag: Reynolds number

Reynolds Equation: Derivation and Solution

12.11.2016 tribonet

Reynolds equation is a partial differential equation that describes the flow of a thin lubricant film between two surfaces. It is derived from the Navier-Stokes equations and is one of the fundamental equations of the […]

Three-dimensional subatomic scale AFM can measure friction

11.05.2017

Atomic force microscopy (AFM) is an extremely sensitive technique that allows us to image materials and/or characterize their physical properties on the atomic scale by sensing the force above material surfaces using a precisely controlled [...]
Self-Cleaning Coatings and Lubricants to Decrease Water Consumption in Toilets

06.04.2020

Decreasing water consumption is a key theme in today’s world, as we deal with the ever-growing concern of water scarcity. Water scarcity is the inability of freshwater sources to meet the water demand of the [...]
How do phonons lead to frictional energy dissipation?

18.12.2019

Friction is often associated with the generation of vibrations in the solids that are sliding over each other. Mathematically, these vibrations are described by the phonons in the two solids, the vibrational eigenmodes. Here, we [...]
Phase-Switching Liquids Frost 300 Times Longer Compared to Known Anti-Icing Coatings

08.04.2019

Ice and frost formation on surfaces afflicts various energy and transportation industries worldwide, causing economic losses in billions of dollars annually. Most techniques to prevent frost and ice formation on surfaces rely heavily on heating [...]
Low-temperature steel hardening - a new way

13.04.2018

EU-funded researchers developed a novel process for surface hardening of stainless steel that ensures high hardness with extraordinary corrosion and fatigue resistance properties. Stainless steel is the material of choice in various industries where corrosion [...]