VISCOSITY LAW Meaning and
Definition
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Viscosity law refers to the scientific principle that describes the behavior of viscosity in fluids. Viscosity is the measure of a fluid's resistance to flow or its internal friction. According to the viscosity law, there exists a proportional relationship between the velocity gradient and the shear stress in a fluid.
The law states that, under constant temperature and pressure conditions, the rate at which a fluid flows (shear rate) is directly proportional to the applied force per unit area (shear stress). This means that if the force applied to a fluid is increased, the fluid will flow faster due to reduced internal resistance. Conversely, if the force applied to the fluid is decreased, the fluid will flow slower.
The viscosity law can be mathematically expressed using the equation η = τ/du/dy, where η denotes the viscosity of the fluid, τ represents the shear stress, and du/dy indicates the velocity gradient or the rate of change of velocity with respect to distance.
This law has significant applications in various fields such as engineering, physics, and materials science. It is particularly useful in understanding fluid dynamics, designing efficient transportation systems, developing industrial processes involving fluid flow, and formulating products like paints, oils, and lubricants. The viscosity law is crucial for scientists and engineers to accurately predict and control the flow behavior of fluids in different practical scenarios.
Common Misspellings for VISCOSITY LAW
- ciscosity law
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- vuscosity law
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Etymology of VISCOSITY LAW
The term "viscosity law" does not have a specific etymology. However, it can be broken down into its components to understand its origin.
"Viscosity" comes from the Latin word "viscosus", meaning "sticky" or "viscous", and the suffix "-ity", indicating a quality or state. Viscosity refers to the measure of a fluid's resistance to flow or its internal friction.
"Law" comes from the Old English word "lagu", which originated from the Old Norse word "lag", meaning "law" or "custom". It refers to a set of principles or regulations established by a governing authority.
Therefore, "viscosity law" is a term that describes a principle related to the behavior or characteristics of viscous fluids, typically in the context of physics or fluid mechanics.
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