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Viscosity - Coggle Diagram

- - - - Shear rate: When the shear rate increases it tends to decrease the viscosity of fluids
      - Pressure: When pressure is increased is can raise the viscosity of some fluids
      - Temperature: The viscosity of the fluid usually decreases when the temperature is raised
- - - - Water
- - - - Their analysis of viscosity
        
        Newton: He described Newton's Law of Viscosity, describing the response of a continuous, incompressible fluid to shear stress
        
        Poiseuille: discovered the concept of measuring viscosity by formulating the "mathematical expression for the flow rate for the laminar flow of fluids in circular tubes
        
        Gotthilf Hagen: He made this equation for viscosity:: Δ P = − 8 μL R 2 U or Δ P = − 8 μL π R 4 Q