30
Jan
Definition Of Viscosity In Fluid Mechanics. This physics video tutorial provides a basic introduction into viscosity of fluids. If the frictional force is large as in glue or glycerine the viscosity of two liquids by filling two measuring cylinders with each of them and allowing identical small steel ball-bearings to fall through each liquid. The concept of viscosity was first formalized by Newton who considered the shear stresses likely to arise when a fluid undergoes what is called laminar motion with the sort of velocity profile that is suggested in Figure 9A. Shear stress in the fluid is created by the intermolecular friction exerted when layers of fluid attempt to slide by one another.
It is an internal resistance between two particles. This physics video tutorial provides a basic introduction into viscosity of fluids. In numerical problems if you want to convert viscosity. Viscosity is defined as the measure of the resistance of a fluid to gradual deformation by shear or tensile stress. A fluids viscosity is the measure of its resistance to its gradual deformation by tensile or shear stress. Since Nm2 is equals to the Pascal Pa.
What does Viscosity mean in Fluid Mechanics.
If the frictional force is comparatively low as in water the viscosity of the liquid is low. Shear stress in the fluid is created by the intermolecular friction exerted when layers of fluid attempt to slide by one another. In section L1 definition of a fluid says that under the action of a shear stress a fluid continuously deforms and the shear strain results with time due to the deformation. In everyday terms and for fluids only viscosity is thickness or internal friction. If the frictional force is comparatively low as in water the viscosity of the liquid is low. The laminae here are planes normal to the x2 -axis and they are moving in the direction of the x1 -axis with a velocity v1 which increases in a linear fashion with x2.