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Dynamic viscosity : It is defined as the property of a fluid which offers resistance to the movement of the one layer of fluid over the another adjacent layer of the fluid. When two layers of a fluid at a distance ' dy ' , move one over the other at different velocities such as, u and u + du , the vRead more
Dynamic viscosity : It is defined as the property of a fluid which offers resistance to the movement of the one layer of fluid over the another adjacent layer of the fluid.
When two layers of a fluid at a distance ‘ dy ‘ , move one over the other at different velocities such as, u and u + du , the viscosity together with relative velocity causes a shear stress acting between the fluid layers
The top layer give rise to a shear stress on the adjacent lower layer while the lower layer gives a shear stress on the adjacent top layer.
This shear stress is proportional to the rate of change of velocity with respect to y . It is denoted as Tau.
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