Question
Download Solution PDFThe SI unit of Kinematic viscosity is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Kinematic viscosity:
Kinematic viscosity is defined as the ratio of dynamic viscosity and density of the fluid.
\(kinematic~ viscosity= \frac {dynamic ~ viscocity}{density ~of ~fluid}\)
\(ν = \frac {μ}{ρ }\)
- SI unit = m2 / s
- CGS unit = Stokes or cm2 / s
- 1 Stoke = 10-4 m2 / s
Additional Information
Dynamic Viscosity ( µ )
- Viscosity can be defined as the measure of a fluid's resistance to deformation at a given flow.
- Caused by friction within a fluid.
- Result of intermolecular forces between the particles within a fluid.
- SI unit N-s/m2 or Pa-s.
Shear stress is given by,
\(Shear\;stress = \;\mu \;\frac{{du}}{{dy}}\)
where,
µ = Dynamic Viscosity of fluid
\(\frac{u}{y}\)= Rate of shear deformation
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