Hydraulic diameter - d h - (or c haracteristic length - L) (m, ft)Ībsolute (dynamic) viscosity - μ - (Ns/m 2, lb m/s ft) The calculator is generic and can be used for metric and imperial units as long as the use of units are consistent. The calculator is valid for incompressible flow - flow with fluids or gases without compression - as typical for air flows in HVAC systems or similar. This calculator can be used if density and absolute (dynamic) viscosity of the fluid is known. Online Reynolds Calculator Density and absolute (dynamic) viscosity is Known
#Kinematic viscosity of water table Offline#
free apps for offline use on mobile devices. Reynolds Number can then be calculated using equation (1) like Example - Calculate Reynolds NumberĪ Newtonian fluid with a dynamic or absolute viscosity of 0.38 Ns/m 2 and a specific gravity of 0.91 flows through a 25 mm diameter pipe with a velocity of 2.6 m/s.ĭensity can be calculated from the specific gravity of the fluid and the density of the specific gravity reference water 1000 kg/m 3 - as In practice laminar flow is only actual for viscous fluids - like crude oil, fuel oil and other oils. The Reynolds Number can be used to determine if flow is laminar, transient or turbulent. Ν = kinematic viscosity (cSt) (1 cSt = 10 -6 m 2/s ) The Reynolds number for a pipe or duct expressed in Imperial units The Reynolds Number for the flow in a duct or pipe can with the hydraulic diameter be expressed asĭ h = hydraulic diameter (m, ft) Reynolds Number for a Pipe or Duct in Imperial Units Ν = μ / ρ = kinematic viscosity (m 2/s, ft 2/s) Reynolds Number for Flow in Pipe or Ductįor a pipe or duct the characteristic length is the hydraulic diameter. Μ = dynamic viscosity (Ns/m 2, lb m/s ft) U = velocity based on the actual cross section area of the duct or pipe (m/s, ft/s) Reynolds Number can therefore be expressed as dynamic pressure (ρ u 2) to shearing stress (μ u / L).
inertia force (ρ u L) to viscous or friction force (μ).Reynolds number for clean cold water flow.Reynolds Number - the non-dimensional velocity - can be defined as the ratio 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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