11/3/2023 0 Comments Evonik viscosity index calculatorA higher VI indicates that the fluid’s viscosity changes less with temperature variations, which is often desirable for maintaining lubrication efficiency in a wide range of operating conditions. ![]() The viscosity index is a crucial parameter for evaluating the performance of lubricants and hydraulic fluids. H is the kinematic viscosity of the fluid at a higher reference temperature (typically 100☌).L is the kinematic viscosity of the fluid at a lower reference temperature (typically 40☌).VI represents the viscosity index, a dimensionless number used to quantify how the viscosity of a fluid changes with temperature.The formula for calculating the viscosity index (VI) is as follows: The Viscosity Index Calculator is a valuable tool used in fluid dynamics and engineering to assess the viscosity-temperature relationship of lubricating oils and fluids. ![]() ![]() About Viscosity Index Calculator (Formula)
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