![]() ![]() ![]() Those effects could be important to designers of devices such as high resolution 3D printers that use nanoscale nozzles, nanofluidic systems and even certain biomedical devices.Ĭonsidering that nano-confined water is ubiquitous in animal bodies, in rocks, and in nanotechnology, this new understanding could have a broad impact. “Anyone performing an experiment, developing a technology or attempting to understand a biological process that involves water or another liquid at this size scale will now have to take the properties of surfaces into account.” “At the nanoscale, viscosity is no longer constant, so these results help redefine our understanding of fluid flow at this scale,” said Elisa Riedo, an associate professor in the School of Physics at the Georgia Institute of Technology. And it also provides a new factor that the designers of tiny mechanical systems must take into account. The effect of container properties on the fluids they hold offers yet another example of surprising phenomena at the nanoscale. Nanoscopic glass channels can make water flow more like ketchup than ordinary H 2O. A new study shows that in nanoscopic channels, the effective viscosity of water in channels made of glass can be twice as high as water in plastic channels. Reynolds number for clean cold water flow.Water pours into a cup at about the same rate regardless of whether the water bottle is made of glass or plastic.īut at nanometer-size scales for water and potentially other fluids, whether the container is made of glass or plastic does make a significant difference. Thermal properties of water at different temperatures like density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more. ![]() Liquid water properties at temperatures between melting point and boiling point and pressures of 14.7 psia, 1000 psia and 10000 psia (1 atm, 68.1atm and 681 atm). Temperatureįigures and tables showing the enthalpy and entropy of liquid water as function of temperature - SI and Imperial Units. Temperature and Pressureįree online calculator - figures and tables with viscosity of water at temperatures ranging 0 to 360☌ (32 to 675☏) - Imperial and SI Units. Water - Dynamic (Absolute) and Kinematic Viscosity vs. Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic.Ĭonvert between viscosity units like Centiposes, milliPascal, CentiStokes and SSU. Seawater properties like density, saturation pressure, specific heat, electrical conductivity and absolute viscosity.Ĭomparing properties like specific gravity, freezing points and viscosity for secondary coolants like calcium chloride, sodium chloride, ethylene glycol and propylene glycol.Ībsolute viscosity of steam at pressure ranging 1 - 10000 psia. Introduction and definition of the dimensionless Reynolds Number - online calculators. Kinematic viscosities of some common liquids like motor oil, diesel fuel, peanut oil and many more. Heat transfer, pressure and head loss in a fluid varies with laminar, transitional or turbulent flow.Ībsolute (dynamic) viscosity values for some common fluids. Sizing cooling water pipe lines - maximum allowable flow, velocity and pressure drops.ĭynamic (Absolute) Viscosity - Converting ChartĬonvert dynamic viscosity values between units like Poiseuille - Poise - centiPoise and more.Ĭonvert between kinematic viscosity units like centistokes, poise, lentor and more. Viscosities of products and chemical species at varying conditions.Ībsolute or Dynamic Viscosity Online ConverterĬonvert between dynamic or absolute viscosity units - Poiseuille, Poise, centPoise and more. Involving velocity, pressure, density and temperature as functions of space and time. Pipe lines - fluid flow and pressure loss - water, sewer, steel pipes, pvc pipes, copper tubes and more. ![]()
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