eThermo Thermodynamics & Transport Properties Calculation » Dynamic vVscosity
Dynamic vVscosity The dynamic (shear) viscosity of a fluid expresses its resistance to shearing flows, where adjacent layers move parallel to each other with different speeds. It can be defined through the idealized situation known as a Couette flow, where a layer of fluid is trapped between two horizontal plates, one fixed and one moving horizontally at constant speed u. This fluid has to be homogeneous in the layer and at different shear stresses.