In mechanics of fluids we are always interested in calculating the rate of deformation contrast to that of solids because it is impossible for a fluid to resist deformation except under some circumstances.A fluid continuously goes on deforming under the action of shear stress.
In mechanics of fluids we are always interested in calculating the rate of deformation contrast to that of solids because it is impossible for a fluid to resist deformation except under some circumstances.A fluid continuously goes on deforming under the action of shear stress.