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Viscosity

Physics

The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal concept of "thickness": for example, honey has a higher viscosity than water.

Relations

  • General 

  • Etymology 

  • Definition 

  • Newtonian and non-Newtonian fluids 

  • In solids 

  • Measurement 

  • Units 

  • Molecular origins 

  • Selected substances 

  • Amorphous materials 

  • Eddy viscosity