a band moves at a speed V and is in contact with a surface of an oil tank with viscosity m. calculate the power in watts required if the belt is moving at 2.9 m / s over SAW 30W oil at 20 C with L = 2m, b = 60m, Nu = 329.0mm ^ 2 / s, rho = 0.9g / cm ^ 2 and h=3cm

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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.