Whereas dynamic viscosity is usually used to talk about how difficult it is to pour a fluid when a force acts upon it, kinematic viscosity refers to the fluids resistance when no force but gravity is. It is sometimes expressed in terms of centistokes cs or cst. The poise is often used with the metric prefix centi. Kinematic and dynamic viscosity of diesel, biodiesel, and. Kinematic vs dynamic viscosity sgs polymer solutions. Difference between kinematic and dynamic viscosity. Note that the conversion from absolute dynamic viscosity to kinematic. Viscosity related conversions viscosity dynamic poise, centipoise, pound forcesecondsquare inch, poundalsecondsquare foot, gramcentimetersecond, slugfootsecond, poundfootsecond and more. Kinematic viscosity is the ratio of absolute or dynamic viscosity to density a quantity in which the force is external and independent of the mass of the fluid. This calculator, which is part of uconeer, converts between the dynamic and kinematic viscosity categories. Because of the densitydependent relationship between kinematic and dynamic viscosity, two substances that have the same dynamic viscosity can have widely different kinematic viscosities. However, due to the viscosity values of most common fluids, square centimeters per second cm 2 s is used more often.
For a conversion between dynamic and kinematic viscosity the correct density must be given. It can convert a dynamic viscosity from one set of units to another, and similarly for kinematic viscosity. Fluid viscosity properties, including dynamic viscosity. Fluid experiences resistance over each layer of it when subjected to deformation. Dynamic, absolute and kinematic viscosity note that the conversion from absolute dynamic viscosity to kinematic viskosity depends on fluid density. Kinematic viscosity can be obtained by dividing the dynamic viscosity of a fluid by its density. What is the relationship between kinematic and dynamic. The conversions below are for fluid with density like water or specific gravity like one. The dynamic absolute viscosity is the liquids resistance to flow. Converting between dynamic and kinematic viscosity.
Conversion calculators convert between different units of measurement. What is the difference between dynamic and kinematic. Kinematic viscosity conversion calculator converts stoke, square meter per second, centistokes, square foot per hour vice versa with metric conversion. The conversion result will immediately appear in the output box. What is the difference between dynamic and kinematic viscosity. How to use viscosity dynamic converter select the unit to convert from in the input units list. Poisestokes conversion kinematic and dynamic viscosity converter.
Dynamic viscosity and kinematic viscosity cfd online. Dynamic and kinematic viscosity conversion calculator. Fluid viscosity, sometimes referred to as dynamic viscosity or absolute viscosity, is the fluids resistance to flow, which is caused by a shearing stress within a flowing fluid and between a flowing fluid and its container. The cgs physical unit for kinematic viscosity is the stokes abbreviated s or st, named after george gabriel stokes. Kinematic viscosity converter hydraulics fluids unit. Dynamic viscosity a characteristic of fluids and plastic solids, viscosity describes how resistant the given substance is to any form of deformation. Converting dynamic cp viscosity to kinematic cst viscosity rmw mechanical 28 jul 04 11. Conversion between dynamic and kinematic viscosity. These are dynamic absolute viscosity and kinematic viscosity. The stokesst is the cgs physical unit for kinematic viscosity, named after george gabriel stokes, where 1 st 104 m 2 s. Kinematic viscosity can be obtained by dividing the absolute viscosity of a. Kinematic viscosity can be obtained by dividing the absolute viscosity of a fluid with the fluid mass density like. It is very flexible because you can select whatever units you want for each of the viscosities as well as for the density.
Kinematic viscosity is the ratio of absolute or dynamic viscosity to density a quantity in. In order to convert the two, both the temperature and specific gravity of a substance are taken into account. Dynamic viscosity is the tangential force per unit area shear or tangential stress required to move one horizontal plane with respect to the other at unit velocity when maintained a unit distance apart by the fluid velocity gradient or rate of shear. These two concepts have a variety of applications in fields such as fluid dynamics, fluid mechanics, aerodynamics, chemistry, and even medical science. Relationship between dynamic and kinematic viscosity v. The kinematic viscosity can also be determined by dividing the dynamic viscosity by the fluid density. Select the unit to convert to in the output units list. Oil, fuel, gas are thick, so they have high viscosity at 20c, oil is 84 centipoise. Viscosity kinematic conversion online unit converter. Although dynamic and kinematic viscosity each have their own category in uconeer, they are related to each other directly through the fluid density. Convert between different units of kinematic viscosity. Flow mass flow rate molar flow rate mass flux density molarity weight per volume dynamic viscosity kinematic viscosity surface tension permeability. What is the difference between dynamic viscosity, kinematic viscosity and absolute viscosity. Kinematic viscosity online converter engineering toolbox.
All viscosity kinematic conversion online unit converter. Convert between units of kinematic viscosity using this online calculator. Convert between different kinematic viscosity units centistokes, poise, lentor and. Dynamic viscosity conversion calculator convert poise, pascal second, centipoise, millipoise, micropoise, kilopoise vice versa with metric conversion.
Absolute or dynamic viscosity online converter convert between dynamic. Convert between different units of dynamic viscosity. Kinematic vs dynamic viscosity dynamic viscosity and kinematic viscosity are two important concepts discussed in fluid dynamics. Kinematic viscosity conversion helps in converting different units of kinematic viscosity. The relationship between these two properties is quite straightforward.
Viscosity is a measure of the frictional properties of a liquid that causes a resistance to the normal flow of that liquid. Dynamic viscosity also known as absolute viscosity is the measurement of the fluids internal resistance to flow while kinematic viscosity refers to the ratio of dynamic viscosity to density. Flow mass flow rate molar flow rate mass flux density molarity weight per volume dynamic viscosity kinematic viscosity. What are the differences between dynamic and kinematic. Kinematic viscosity is the ratio of absolute or dynamic viscosity to density a quantity in which no force is involved. The main difference between dynamic and kinematic viscosity is that dynamic viscosity is a measurement of how difficult it is for a fluid to flow whereas kinematic viscosity is the dynamic viscosity of a. The other kind of viscosity will be given in the lower box. Absolute, dynamic and kinematic viscosity engineering toolbox. There are various units which help us define kinematic viscosity and we can convert the units.
Kinematic viscosity converter kinematic viscosity is defined as the ratio of absolute or dynamic viscosity to density. The two most common types of viscosity are dynamic and kinematic. The calculator on this site is for informative purposes only and we make no claims as to the accuracy, completeness or fitness for any particular purpose of the results produced by our calculators. In table 2, we present most common units for viscosity and the conversion factors between them. The main difference between dynamic and kinematic viscosity is that dynamic viscosity is a measurement of how difficult it is for a fluid to flow whereas kinematic viscosity is the dynamic viscosity of a fluid divided by its density. Dynamic and kinematic viscosity conversion calculator included in. Dynamic viscosity is also termed absolute viscosity and is the tangential force per unit area required to move one horizontal plane with respect to the other at unit velocity when maintained a unit distance apart by the fluid. The kinematic viscosity m2s is the ratio between the dynamic viscosity pa. Free online viscosity kinematic converter converts between 24 units of viscosity kinematic, including square metersecond, square meterhour m2h, square centimetersecond, square millimetersecond, etc. Enter the value to convert from into the input box on the left.
Dynamic vsicosity is the force required to maintain the fluid flow at a particular rate. You must know both the kinematic and dynamic viscosity of a gas or liquid to calculate its density. Dynamic viscosity also known as absolute viscosity is the measurement of the fluids internal resistance to flow while kinematic viscosity refers to. Kinematic viscosity can be obtained by dividing the absolute viscosity of a fluid with its mass density. Also, explore many other unit converters or learn more about viscosity kinematic unit conversions. It also includes a calculator to convert between dynamic and kinematic viscosities by entering the density. Dynamic viscosity unit converter measurement conversion ai. Dynamic, absolute and kinematic viscosities convert between centistokes cst, centipoises cp, saybolt universal seconds ssu and degree engler. Dynamic viscosity divided by the density of the liquid. Viscosity kinematic conversion free unit converter. Common units for dynamic and kinematic viscosity rheosense. These are the most basic units used for viscosity but there is a large variety of units that are. Density actually provides a way to convert between a kinematic and a dynamic viscosity measurement.
Kinematic viscosity is the ratio of the fluids dynamic viscosity to the fluids density. Kinematic viscosity converter convert kinematic viscosity. Unit of viscosity dynamic viscosity, kinematic viscosity. Conversion calculators convert between different units of. For example, the water is thin so its low viscous at 20c, 1. For scientific, educational and general purposes to convert from one unit to another. Conversion calculators convert between different units.
This is a screen shot from the professional units conversion program uconeer from katmar software. The kinematic viscosity of a fluid is found by dividing the dynamic viscosity by the density of the fluid. Viscosity of the fluid is the internal resistance to flow. The quotient has units length squared divided by time. Kinematic viscosity is defined as the ratio of absolute or dynamic viscosity to density.
Fill in either the dynamic or the kinematic viscosity, as well as the density of the fluid. Dynamic viscosity kinematic viscosity anton paar wiki. Enter a value to convert and select units using the dropdown boxes. The kinematic viscosity of water changes depending on the temperature of the water. Kinematic viscosity measures the comparative rate at which a liquid or gas flows. Kinematic viscosity unit conversion calculator gordon england. The higher the viscosity, the longer it takes to flow through the tube i. How to use viscosity kinematic converter select the unit to convert from in the input units list. Conversion of these quantities is equally important as measuring them. A dynamic viscosity unit is to measure how thick the fluid is.