Viscosity - Saylor Academy
Viscosity 5 Viscosity coefficients Viscosity coefficients can be defined in two ways: • Dynamic viscosity, also absolute viscosity, the more usual one (typical units Pa·s, Poise, P); • Kinematic viscosity is the dynamic viscosity divided by the density (typical units m2/s, Stokes, St). Viscosity is a tensorial quantity that can be decomposed in different ways into two …
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www.vit.edudependence of viscosity Viscosity of Newtonian fluids depends only on temperature and pressure exp (P P ) E T T (T,P) exp o o 0 β − ∆ − µ =µ MPD/FFO/Lect_3 R To T Where µo:viscosity at To and Po (reference temperature and pressure) ∆E: activation energy for flow R: gas constant β:material property [m2/N]