Q3. SAE 30 oil (Sp. Gr. =0.833) with a dynamic viscosity 0.28 N.S/m flows in a 4-cm-diameter pipe which is inclined with an angle 37°, For the pressure measurement shown, determine Whether the flow is up or down A. The flow rate in m/h The shear stress and velocity 1 cm from the boundary. Draw the shear stress and velocity profile with the section of the pipe. В. C. D.

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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.