Question

At room temperature the dynamic and kinematic viscosity of water air

Answer 1

The dynamic viscosity of water is 8.90 × 10−4 Pa. s or 8.90 × 10−3 dyn. s/cm2 or 0.890 cP at about 25 °C. Water has a viscosity of 0.0091 poise at 25 °C, or 1 centipoise at 20 °C. As a function of temperature T (K): (Pa).

Answer 2

Answer:

The dynamic viscosity of water is 0.8921 mPa*s and the kinematic viscosity of water is 8.947*10^-7 m^2/s.

Explanation:

• A fluid's resistance to slow deformation by shear stress or tensile stress is measured by its viscosity.
• Internal resistance is quantified by the coefficient of absolute viscosity or absolute viscosity.
• The tangential force per unit area necessary to move one horizontal plane with respect to another plane while maintaining a constant distance between them in a fluid is known as dynamic (absolute) viscosity.
• To assess whether a fluid flow is laminar, transient, or turbulent, Reynold's Number, also known as absolute or dynamic viscosity, is computed.
• The ratio of absolute (or dynamic) viscosity to density, a quantity in which no force is applied, is known as kinematic viscosity.
• By dividing a fluid's absolute viscosity by its mass density, one can determine the fluid's kinematic viscosity.

The dynamic viscosity of water is 0.8921 mPa*s and the kinematic viscosity of water is 8.947*10^-7 m^2/s.

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