All you need is a glass or plastic tube, steel or marble balls, a stopwatch, and a liquid. The process and tools you need are fairly basic. To get a general viscosity rating of a liquid, you can use a simple measuring technique. Now you know the centipoise rating of these fluids. Many of these products you probably use in your daily life. A rating of a higher centipoise is going to flow much slower. It is a unit of dynamic viscosity, the typical type of viscosity we think of.Ī fluid with a low centipoise will flow and move easily and fast. What is Centipoise?Ĭentipoise (CPS) is the viscosity value that is assigned to liquids. The measurement we use to describe the viscosity of a fluid is known as centipoise. While water-like, semi-viscous, and viscous are good terms to use sometimes you need to get more specific about the viscosity of a fluid. Viscous – Hair gel or pastes which are thick and do not move easily.Semi-Viscous – Maple syrup or soybean oil that is a bit thicker in nature.Water-Thin – Considered to have free flowing characteristics, such as perfumes/colognes or obviously water.These are the three main terms used to describe the viscosity of a liquid. At high viscosities, fluids are going to flow and move much slower, a good example would be a gel, lotion, or even thicker peanut butter type consistency. A familiar example would be liquids such as water and alcohol. That is, unless a propeller is attached to propel or push the ship forward, or you could also create this same push manually with an oar.Īt low viscosities, fluids will flow with greater ease. If you set a ship in motion it would eventually come to a halt because of the viscosity of the water, which resists the flow of the boat. What causes viscosity is the cohesive forces between molecules in the fluid. On the contrary, low viscosity fluids are more volatile, creating environmental problems.What is viscosity? In simple terms, viscosity is a measure of a liquid’s resistance to flow, or the measure of internal friction. Oils with too high viscosity don't protect well against mechanical friction, resulting in heat generation. Viscosity will affect the thickness of the oil film as well as the effectiveness of its protective qualities. ![]() These films are used to protect equipment from mechanical wear and may also have extra benefits such as creating a barrier to corrosion. The viscosity of oil and lubricants are often measured in industrial settings. ![]() Kinematic viscometers determine the kinematic viscosity by measuring the time it takes for the fluid to pass through a portion of a capillary. Care must be taken when interpreting values and the temperature at which the values were measured. Understanding the distinction comes into play in industrial settings as record data is normally reported as kinematic viscosity, but onsite measurements are often measured as dynamic viscosity. Kinematic viscosity is not the same as dynamic viscosity, although they are related mathematically by the density of the fluid. This intermolecular friction is what makes the fluid resistant to change in shape and explains the thick and slow moving properties of highly viscous fluids. The stronger the intermolecular force, the more the molecules will stick together as they collide, manifesting a frictional interaction. Strongly polarized interactions like hydrogen bonding in water or interactions between large non-polar surfaces in viscous oils produce stronger intermolecular forces. Viscosity results from the intermolecular forces between molecules in a liquid. Corrosionpedia Explains Kinematic Viscosity
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |