Dynamic viscosity si units8/19/2023 Kinematic viscosity at gas-liquid equilibrium pressure:ĭynamic (absolute) and kinematic viscosity of nitrogen at given temperatures and pressures, SI and Imperial units:įor full table with Dynamic and Kinematic Viscosity - rotate the screen! StateĪbsolute or Dynamic Viscosity Unit ConverterĬentipoise, gram/(centimeter second) = poise, kilogram/meter second =newton second/square meter = pascal second, pound/(foot hour) , pound/(foot second), reyn Nitrogen dynamic and kinematic viscosity at atmospheric pressure and varying temperature:ĭynamic viscosity of nitrogen at varying temperature and 1, 10 and 100 bara (14.5, 1 psia):ĭynamic viscosity at gas-liquid equilibrium pressure: See also other properties of Nitrogen at varying temperature and pressure: Density and specific weight, Prandtl number, Specific heat (Heat capacity), Thermal conductivity and thermal diffusivity, and thermophysical properties at standard conditions,Īs well as dynamic and kinematic viscosity of air, ammonia, benzene, butane, carbon dioxide, ethane, ethanol, ethylene, methane, methanol, oxygen, propane and water. While the kinematic viscosity is given as cSt, m 2/s, and ft 2/s The output dynamic viscosity is given as Pa*s, N*s/m 2, cP, mPa*s, lb f*s/ft 2 and lb m/(ft*h), The calculator below can be used to calculate nitrogen dynamic or kinematic viscosity at given temperatures and atmospheric pressure. Tabulated values and viscosity units conversion are given below the figures. Absolute or dynamic viscosity is used to calculate Reynold's Number to determine if a fluid flow is laminar, transient or turbulent. When inertia, as well as viscous force, is dominant.The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress.įor further definitions, go to Absolute (dynamic) and kinematic viscosity. The ratio of dynamic viscosity to density. The ratio of shear stress to shear strain. This viscosity is the ratio of dynamic viscosity to density. kinematic viscosity is given below in the table:ĭynamic viscosity is the measurement of the fluid’s internal resistance to flow. The fluids flowing in pipes and everything which involves more movement from one point to another are examples of kinematic viscosity. Using a calibration constant provided for the specific tube, the time is converted directly to kinematic viscosity.Ĭentistokes (CST) is the unit of measure of kinematic viscosity. In this method, the time it takes fluid to flow through a capillary tube is determined. There are several ways to find the kinematic viscosity of the fluid, but the most common method is the capillary tube viscometer. The kinematic viscosity = Dynamic viscosity / Fluid mass density. The measure of the inherent resistance of a fluid to flow when no external force is exerted except gravity is known as kinematic viscosity.īy dividing the absolute or dynamic viscosity of a fluid with the fluid mass density, kinematic viscosity can be obtained, and Centipoise (cP) is the unit of measure for dynamic viscosity. The ratio of dynamic viscosity to the density of the fluid is called kinematic viscosity. The fluid used in hydraulics, lubricants to avoid friction bearings, seals, etc. This viscometer can adjust the turning speed of the probe as it moves in the liquid, and the viscometer detects the variation in the sample’s viscosity as the speed. By measuring the force or torque, viscosity is determined. To measure dynamic viscosity, the rotational viscometers are one of the more popular instruments used, and in the liquid sample, these instruments rotate a probe.
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