Viscosity can be of critical importance in medicine as fluids are introduced into the body intravenously.
Lubricants that are too thin provide too little protection for moving parts. Lubricants that are too viscous can jam and clog pipelines. Manufacturing equipment requires appropriate lubrication to run smoothly. Some viscous fluids add texture to foods honey, for example, is quite viscous and can change the "mouth feel" of a dish. A thick potato and leek soup, for example, when it is less viscous, becomes French vichyssoise. Different cuisines also rely on the viscosity of sauces, soups, and stews. Fats, which are moderately viscous when heated, become solid when chilled. Cooking oils may or may not change viscosity as they heat, while many become much more viscous as they cool. Viscosity plays a significant role in the preparation and serving of food. Some oils have a more stable viscosity, while others react to heat or cold if your oil's viscosity index is low, it may become thinner as it heats, which can cause problems as you operate your car on a hot summer's day. This behavior is also referred to as pseudoplastic and is the result of structural breakdown within the fluid. In addition, viscosity also affects the rate of oil consumption and the ease with which your vehicle will start in hot or cold conditions. Shear Thinning Most cosmetic products like emulsions and suspension are shear thinning, meaning that viscosity decreases with increasing shear rate. That's because viscosity affects friction, and friction, in turn, affects heat. When you put oil into your car or truck, you should be aware of its viscosity. On the contrary, low viscosity fluids are more volatile, creating environmental problems. Oils with too high viscosity don't protect well against mechanical friction, resulting in heat generation. viscosity synonyms, viscosity pronunciation, viscosity translation, English dictionary definition of viscosity. 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. If the viscosity of a fluid is too high at low temperatures, it cannot be pumped. Fast-moving liquids like water have low viscosity and slow-moving liquids like honey have high viscosity. Kinematic viscometers determine the kinematic viscosity by measuring the time it takes for the fluid to pass through a portion of a capillary. Viscosity is the resistance produced in a liquid to its flow. 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
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