Understanding Fluid Velocity in a Normal Tube

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Fluid velocity in a normal tube is primarily determined by the pressure driving the fluid, along with factors such as fluid density, viscosity, and friction with the tube walls. At higher flow rates, turbulence can significantly affect velocity profiles. Maximum fluid velocity typically occurs at the center of the flow, decreasing to zero at the tube wall due to the no-slip condition. The relationship between velocity and radius can be described as a negatively linear function in laminar flow conditions. Understanding these dynamics is crucial for applications in fluid mechanics and engineering.
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What determines the velocity of a fluid, in a normal tube?
 
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The pressure pushing it along.
The inertia will depend on the density
The viscosity
Any friction with the walls
At higher flow rates - turbulence.
 
Does maximum velocity occur in the center of flow, decreasing outward to zero velocity at the tube wall? Are velocities of this flow a negatively linear function of radius?
 

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