The viscosity of the fluid is an important physical property, which is as it circulates in the behavior of fluids. Very viscous fluid resistant strain, stress and traffic is not so easy, but the less viscous fluid flow easier and less resistant to stress. The two main ways of measuring the dynamic viscosity and kinematic viscosity. They are closely related, but different programs.
The dynamic viscosity, also called absolute viscosity is the measure most commonly used. It measures the resistance of fluid flow - in other words, the internal friction of the fluid, or how easy it is to deform under mechanical stress at a temperature and pressure. Definition of dynamic viscosity ratio of the shear stress velocity gradient. When the force is perpendicular to the liquid surface, it deforms to the side, or scissors. Mild to severe deformities of the dynamic viscosity, sometimes called simply the viscosity.
The kinematic viscosity, however, measures the weight of resistance to fluid flow. This measure is to obtain the dynamic viscosity of the fluid and divide by the density of the fluid. The higher viscosity of the liquid will be more easily under the force of gravity and greater kinematic viscosity will be.
Dynamic and kinematic viscosity, expressed in different units of measure. The International System of Units (SI) units of Pascal seconds dynamic viscosity. Pascals pressure measurement in this case, the fluid shear stress - in seconds to measure the time it takes to deform. The dynamic viscosity can be measured in units called balance, and other measures of the dependence of time pressure. A unit used to measure the kinematic viscosity of Stokes or square centimeters per second, even if at times square meters per second in SI units are used.
Use is necessary for measurements of dynamic and kinematic viscosity of the various real-world applications. For example, it is important to make a painting with a certain dynamic viscosity to ensure that it can be mixed and applied the correct thickness. Measurement of kinematic viscosity often used in cases where the flow of liquid through a pipe or lubricate machinery like a car engine.
In the business world of today, searching for answers online is another way for many QC labs. "It's a simple thing, it seems that the word (s) that describe if you have any questions, for example, the viscosity pharmaceutical or" viscosity studies. Most manufacturers viscometer maintain web applications of information that is useful in dealing with everyday problems that arise. Brookfield Web site (see Figure 2). It's not just the section that describes how to test a variety of materials, but also a "Frequently Asked Questions" or "FAQ", which describes how to verify that your device is properly read the viscosity.
Products such as motor oil, which is a different physical conditions must be dynamic and kinematic viscosity to behave correctly. Changes in fluid viscosity, temperature and pressure. For example, cold air, oil thickens and becomes denser, so it flows more difficult. It is important to know the coefficients of dynamic and kinematic viscosity in this situation, to predict how oil will behave at different temperatures.
