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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. Let us regard blood as an incompressible viscous fluid with mass density u similar to that of water and dynamic viscosity 1 4.5 gms. 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. EGs highest dynamic viscosity is 19.486 mPa s at 20 C and decreases to 2.98. 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. Viscosity (Pa-s) Kinematic Viscosity (m 2 /s) Surface Tension (N/m) Bulk Modulus (GPa) Thermal Expansion Coefficient (/✬) 0 1 1.79 × 10-3 1.79 × 10-6 7.56 × 10-2 1.99 -6.81 × 10-5 0 1. The lowest dynamic viscosity of the base fluid is water with 1.0 mPa s at 20 C and drops to 0.3543 mPa s at 80 C 143. Values for pure H 2 O, CO 2, and, by extension, H 2 OCO 2 mixtures are similar and vary relatively little compared to properties like porosity and permeability a representative value for the middle and lower crust is 1.5 × 10 4 Pa s. The stronger the intermolecular force, the more the molecules will stick together as they collide, manifesting a frictional interaction. The dynamic viscosity is the viscosity of a moving fluid it depends on T, P, and fluid composition. Strongly polarized interactions like hydrogen bonding in water or interactions between large non-polar surfaces in viscous oils produce stronger intermolecular forces. density water, dynamic viscosity water, kinematic viscosity water, specific inner energy water, specific enthalpy water, specific entropy water, specific isobar heat capacity cp water, specific isochor heat capacity cv water, thermic conductivity water, speed of. Viscosity results from the intermolecular forces between molecules in a liquid. Question bank for Mechanical Engineering.Corrosionpedia Explains Kinematic Viscosity Can you explain this answer? over here on EduRev! Apart from being the largest Mechanical Engineering community, EduRev has the largest solved The critical flow in this pipe would correspond to a discharge of approximatelya)0.008 L/sb)0.032 L/sc)0.016 L/sd)0.025 L/sCorrect answer is option 'C'. Water of kinematic viscosity v = 1 centistoke flows through a 10 mm diameter pipe. Warning 1 : values were not verified individually Warning 2 : viscosity is sensitive to many parameters and the values below are general. You can study other questions, MCQs, videos and tests for Mechanical Engineering on EduRev and even discuss your questions like Please find below a table of common compounds and their dynamic viscosity at a given temperature, aggregated from different sources. methanol and degassed, deionized water were first tested in a Brookfield. If the answer is not available please wait for a while and a community member will probably answer this Dynamic viscosity is measured using the damping effect that a fluid has on the.
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