In an inclined open channel, velocity distribution of the flow is given by the equation, 2. a thin film of liquid is flowing down. The 1 u = (h² – y²)pgsin0 Where h = depth of flow, e = angle of inclination of the channel to the horizontal, u = velocity at a depth h below the free surface,p = density of liquid,u = dynamic viscosity of the fluid. Calculate the shear stress: (a) at the bottom of the channel (b) at mid-depth (c) at the free surface. The coordinate y is measured from the free surface along its normal

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Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.